When Russian President Vladimir Putin invaded Ukraine on Feb. 24 in an unprovoked act of aggression, many expected a quick victory.

FILE - Ukrainian soldiers take positions in downtown Kyiv, Ukraine, Feb. 25, 2022. Six months ago, Russian President Vladimir Putin sent troops into Ukraine in an unprovoked act of aggression, starting the largest military conflict in Europe since World War II. Putin expected a quick victory but it has turned into a grinding war of attrition. Russian offensive are largely stuck as Ukrainian forces increasingly target key facilities far behind the front lines. (AP Photo/Emilio Morenatti, File)
FILE - Ukrainian soldiers take positions in downtown Kyiv, Ukraine, Feb. 25, 2022. Six months ago, Russian President Vladimir Putin sent troops into Ukraine in an unprovoked act of aggression, starting the largest military conflict in Europe since World War II. Putin expected a quick victory but it has turned into a grinding war of attrition. Russian offensive are largely stuck as Ukrainian forces increasingly target key facilities far behind the front lines. (AP Photo/Emilio Morenatti, File)© Provided by Associated Press
FILE - An explosion is seen in an apartment building after Russian's army tank fires in Mariupol, Ukraine, March 11, 2022. Six months ago, Russian President Vladimir Putin sent troops into Ukraine in an unprovoked act of aggression, starting the largest military conflict in Europe since World War II. Putin expected a quick victory but it has turned into a grinding war of attrition. Russian offensive are largely stuck as Ukrainian forces increasingly target key facilities far behind the front lines. (AP Photo/Evgeniy Maloletka, File)
FILE - An explosion is seen in an apartment building after Russian's army tank fires in Mariupol, Ukraine, March 11, 2022. Six months ago, Russian President Vladimir Putin sent troops into Ukraine in an unprovoked act of aggression, starting the largest military conflict in Europe since World War II. Putin expected a quick victory but it has turned into a grinding war of attrition. Russian offensive are largely stuck as Ukrainian forces increasingly target key facilities far behind the front lines. (AP Photo/Evgeniy Maloletka, File)© Provided by Associated Press

Six months later, the largest military conflict in Europe since World War II has turned into a grinding war of attrition. The Russian offensive has largely bogged down as Ukrainian forces increasingly target key facilities far behind the front lines, including in Russia-occupied Crimea.

FILE - A man rides his bike past flames and smoke rising from a fire following a Russian attack in Kharkiv, Ukraine, March 25, 2022. Six months ago, Russian President Vladimir Putin sent troops into Ukraine in an unprovoked act of aggression, starting the largest military conflict in Europe since World War II. Putin expected a quick victory but it has turned into a grinding war of attrition. Russian offensive are largely stuck as Ukrainian forces increasingly target key facilities far behind the front lines. (AP Photo/Felipe Dana, File)
FILE - A man rides his bike past flames and smoke rising from a fire following a Russian attack in Kharkiv, Ukraine, March 25, 2022. Six months ago, Russian President Vladimir Putin sent troops into Ukraine in an unprovoked act of aggression, starting the largest military conflict in Europe since World War II. Putin expected a quick victory but it has turned into a grinding war of attrition. Russian offensive are largely stuck as Ukrainian forces increasingly target key facilities far behind the front lines. (AP Photo/Felipe Dana, File)© Provided by Associated Press

A look at where things stand:

A BOTCHED BLITZ

When Putin declared the start of the “special military operation,” he urged Ukraine's military to turn against the government in Kyiv, reflecting the Kremlin's belief that the population would broadly welcome the invaders. Some of the Russian troops coming in from Moscow's ally of Belarus, just 200 kilometers (about 125 miles) north of the capital, reportedly brought their parade uniforms with them in preparation for a quick triumph.

Those hopes were quickly shattered by fierce Ukrainian resistance, backed by Western-supplied weapons systems to the government of President Volodymyr Zelenskyy.

FILE - Ukrainian servicemen climb on a fighting vehicle outside Kyiv, Ukraine, April 2, 2022. Six months ago, Russian President Vladimir Putin sent troops into Ukraine in an unprovoked act of aggression, starting the largest military conflict in Europe since World War II. Putin expected a quick victory but it has turned into a grinding war of attrition. Russian offensive are largely stuck as Ukrainian forces increasingly target key facilities far behind the front lines. (AP Photo/Vadim Ghirda, File)
FILE - Ukrainian servicemen climb on a fighting vehicle outside Kyiv, Ukraine, April 2, 2022. Six months ago, Russian President Vladimir Putin sent troops into Ukraine in an unprovoked act of aggression, starting the largest military conflict in Europe since World War II. Putin expected a quick victory but it has turned into a grinding war of attrition. Russian offensive are largely stuck as Ukrainian forces increasingly target key facilities far behind the front lines. (AP Photo/Vadim Ghirda, File)© Provided by Associated Press

Airborne troops sent to seize airfields around Kyiv suffered heavy losses and armored convoys stretching along the main highway leading to the capital were pummeled by Ukrainian artillery and scouts.

Despite numerous attacks on Ukrainian air bases and air defense assets, the Russian air force has failed to win full control of the skies and suffered heavy losses, limiting its ability to support ground forces.

One month into the war, Moscow pulled its troops back from areas near Kyiv, Kharkiv, Chernihiv and other major cities in a tacit acknowledgment of the blitz’s failure.

FILE - A resident looks for belongings in an apartment building destroyed during fighting between Ukrainian and Russian forces in Borodyanka, Ukraine, April 5, 2022. Six months ago, Russian President Vladimir Putin sent troops into Ukraine in an unprovoked act of aggression, starting the largest military conflict in Europe since World War II. Putin expected a quick victory but it has turned into a grinding war of attrition. Russian offensive are largely stuck as Ukrainian forces increasingly target key facilities far behind the front lines. (AP Photo/Vadim Ghirda, File)
FILE - A resident looks for belongings in an apartment building destroyed during fighting between Ukrainian and Russian forces in Borodyanka, Ukraine, April 5, 2022. Six months ago, Russian President Vladimir Putin sent troops into Ukraine in an unprovoked act of aggression, starting the largest military conflict in Europe since World War II. Putin expected a quick victory but it has turned into a grinding war of attrition. Russian offensive are largely stuck as Ukrainian forces increasingly target key facilities far behind the front lines. (AP Photo/Vadim Ghirda, File)© Provided by Associated Press

SHIFTING BATTLEGROUNDS

The Kremlin then shifted its focus to the Donbas, Ukraine's eastern industrial heartland, where Moscow-backed separatists had been fighting government troops since 2014 following Russia's annexation of the Crimean Peninsula.

Relying on their massive edge in artillery, Russian forces inched forward in ferocious battles that devastated the region. The strategic port of Mariupol on the Sea of Azov that became a symbol of Ukrainian resistance fell in May after a nearly three-month siege that reduced the city to ruins.

More than 2,400 Mariupol defenders who holed up at the giant Azovstal steel mill later surrendered and were taken prisoner. At least 53 of them died last month in an explosion at a prison in eastern Ukraine that Moscow and Kyiv blamed on each other.

FILE - Russian military vehicles move on a highway in an area controlled by Russian-backed separatist forces near Mariupol, Ukraine, April 18, 2022. Six months ago, Russian President Vladimir Putin sent troops into Ukraine in an unprovoked act of aggression, starting the largest military conflict in Europe since World War II. Putin expected a quick victory but it has turned into a grinding war of attrition. Russian offensive are largely stuck as Ukrainian forces increasingly target key facilities far behind the front lines. (AP Photo/Alexei Alexandrov, File)
FILE - Russian military vehicles move on a highway in an area controlled by Russian-backed separatist forces near Mariupol, Ukraine, April 18, 2022. Six months ago, Russian President Vladimir Putin sent troops into Ukraine in an unprovoked act of aggression, starting the largest military conflict in Europe since World War II. Putin expected a quick victory but it has turned into a grinding war of attrition. Russian offensive are largely stuck as Ukrainian forces increasingly target key facilities far behind the front lines. (AP Photo/Alexei Alexandrov, File)© Provided by Associated Press

The Russians have taken control of the entire Luhansk region, one of two provinces that make up the Donbas, and also seized just over half of the second, Donetsk.

Russia currently occupies about 20% of Ukraine’s territory.

“Putin will try to bite one piece of Ukrainian territory after another to strengthen his negotiating stand,” said Mykola Sunhurovskyi, a military analyst with the Kyiv-based Razumkov Center think-tank. “His message to Ukraine is: If you don't sit down for talks now, things will get worse and we will take even more of your territory and kill even more of your people. He's trying to raise not only external but also internal pressure on the Ukrainian government.”

FILE - Smoke rises from the Metallurgical Combine Azovstal in Mariupol during shelling, in Mariupol, in territory under the government of the Donetsk People's Republic, eastern Ukraine, May 7, 2022. Six months ago, Russian President Vladimir Putin sent troops into Ukraine in an unprovoked act of aggression, starting the largest military conflict in Europe since World War II. Putin expected a quick victory but it has turned into a grinding war of attrition. Russian offensive are largely stuck as Ukrainian forces increasingly target key facilities far behind the front lines. (AP Photo/Alexei Alexandrov, File)
FILE - Smoke rises from the Metallurgical Combine Azovstal in Mariupol during shelling, in Mariupol, in territory under the government of the Donetsk People's Republic, eastern Ukraine, May 7, 2022. Six months ago, Russian President Vladimir Putin sent troops into Ukraine in an unprovoked act of aggression, starting the largest military conflict in Europe since World War II. Putin expected a quick victory but it has turned into a grinding war of attrition. Russian offensive are largely stuck as Ukrainian forces increasingly target key facilities far behind the front lines. (AP Photo/Alexei Alexandrov, File)© Provided by Associated Press

The Donbas offensive has slowed as Moscow was forced to relocate some of its troops to Russia-occupied areas in the south to fend off a potential Ukrainian counteroffensive.

Russian troops seized the Kherson region, north of Crimea, and part of the neighboring Zaporizhzhia region early in the conflict. It has installed pro-Moscow administrations there, introduced its currency, handed out Russian passports and launched preparations for referendums to pave the way for their annexation.

FILE - A Russian soldier walks in front of the damaged Metallurgical Combine Azovstal plant, in Mariupol, on the territory which is under the Government of the Donetsk People's Republic control, eastern Ukraine, June 13, 2022. Six months ago, Russian President Vladimir Putin sent troops into Ukraine in an unprovoked act of aggression, starting the largest military conflict in Europe since World War II. Putin expected a quick victory but it has turned into a grinding war of attrition. Russian offensive are largely stuck as Ukrainian forces increasingly target key facilities far behind the front lines. (AP Photo/File)
FILE - A Russian soldier walks in front of the damaged Metallurgical Combine Azovstal plant, in Mariupol, on the territory which is under the Government of the Donetsk People's Republic control, eastern Ukraine, June 13, 2022. Six months ago, Russian President Vladimir Putin sent troops into Ukraine in an unprovoked act of aggression, starting the largest military conflict in Europe since World War II. Putin expected a quick victory but it has turned into a grinding war of attrition. Russian offensive are largely stuck as Ukrainian forces increasingly target key facilities far behind the front lines. (AP Photo/File)© Provided by Associated Press

But Ukrainian forces recently reclaimed some ground, striking bridges and targeting munitions depots. Meanwhile, both sides have traded accusations of shelling the Russia-occupied Zaporizhzhia nuclear power plant, Europe's largest, raising fears of an atomic disaster.

FILE - Soldiers walk amid destroyed Russian tanks in Bucha, in the outskirts of Kyiv, Ukraine, April 3, 2022. Six months ago, Russian President Vladimir Putin sent troops into Ukraine in an unprovoked act of aggression, starting the largest military conflict in Europe since World War II. Putin expected a quick victory but it has turned into a grinding war of attrition. Russian offensive are largely stuck as Ukrainian forces increasingly target key facilities far behind the front lines. (AP Photo/Rodrigo Abd, File)
FILE - Soldiers walk amid destroyed Russian tanks in Bucha, in the outskirts of Kyiv, Ukraine, April 3, 2022. Six months ago, Russian President Vladimir Putin sent troops into Ukraine in an unprovoked act of aggression, starting the largest military conflict in Europe since World War II. Putin expected a quick victory but it has turned into a grinding war of attrition. Russian offensive are largely stuck as Ukrainian forces increasingly target key facilities far behind the front lines. (AP Photo/Rodrigo Abd, File)© Provided by Associated Press

“Ukraine has forced Russia to conduct a massive redeployment of forces and spread them all along the front line, from Kharkiv to Kherson,” said Ukrainian military expert Oleh Zhdanov. “It's very hard to stretch them along such a big distance.”

FILE - Cars pass by destroyed Russian tanks in a recent battle against Ukrainians in the village of Dmytrivka, close to Kyiv, Ukraine, May 23, 2022. Six months ago, Russian President Vladimir Putin sent troops into Ukraine in an unprovoked act of aggression, starting the largest military conflict in Europe since World War II. Putin expected a quick victory but it has turned into a grinding war of attrition. Russian offensive are largely stuck as Ukrainian forces increasingly target key facilities far behind the front lines. (AP Photo/Efrem Lukatsky, File)
FILE - Cars pass by destroyed Russian tanks in a recent battle against Ukrainians in the village of Dmytrivka, close to Kyiv, Ukraine, May 23, 2022. Six months ago, Russian President Vladimir Putin sent troops into Ukraine in an unprovoked act of aggression, starting the largest military conflict in Europe since World War II. Putin expected a quick victory but it has turned into a grinding war of attrition. Russian offensive are largely stuck as Ukrainian forces increasingly target key facilities far behind the front lines. (AP Photo/Efrem Lukatsky, File)© Provided by Associated Press

Although Kyiv doesn't have enough weapons to launch a big counteroffensive, “time plays in Ukraine's favor,” he said. “The longer the pause lasts, the more weapons Ukraine will receive from its allies.”

FILE - Ukrainian servicemen prepare to fire at Russian positions from a U.S.-supplied M777 howitzer in Kharkiv region, Ukraine, July 14, 2022. Supplies of Western weapons, including U.S. HIMARS multiple rocket launchers, has significantly boosted the Ukrainian military's capability, allowing it to target Russian munitions deports, bridges and other key facilities with precision and impunity. (AP Photo/Evgeniy Maloletka, File)
FILE - Ukrainian servicemen prepare to fire at Russian positions from a U.S.-supplied M777 howitzer in Kharkiv region, Ukraine, July 14, 2022. Supplies of Western weapons, including U.S. HIMARS multiple rocket launchers, has significantly boosted the Ukrainian military's capability, allowing it to target Russian munitions deports, bridges and other key facilities with precision and impunity. (AP Photo/Evgeniy Maloletka, File)© Provided by Associated Press

UKRAINIAN SUCCESSES

FILE - Ukrainian servicemen shoot with a SPG-9 recoilless gun during training in Kharkiv region, Ukraine, July 19, 2022. Six months ago, Russian President Vladimir Putin sent troops into Ukraine in an unprovoked act of aggression, starting the largest military conflict in Europe since World War II. Putin expected a quick victory but it has turned into a grinding war of attrition. Russian offensive are largely stuck as Ukrainian forces increasingly target key facilities far behind the front lines. (AP Photo/Evgeniy Maloletka, File)
FILE - Ukrainian servicemen shoot with a SPG-9 recoilless gun during training in Kharkiv region, Ukraine, July 19, 2022. Six months ago, Russian President Vladimir Putin sent troops into Ukraine in an unprovoked act of aggression, starting the largest military conflict in Europe since World War II. Putin expected a quick victory but it has turned into a grinding war of attrition. Russian offensive are largely stuck as Ukrainian forces increasingly target key facilities far behind the front lines. (AP Photo/Evgeniy Maloletka, File)© Provided by Associated Press

Western weapons, including U.S. HIMARS multiple rocket launchers, have boosted Ukraine's military’s capability, allowing it to target Russian munitions depots, bridges and other key facilities with precision and impunity.

FILE - Ukrainian self-propelled artillery shoots towards Russian forces at a frontline in Kharkiv region, Ukraine, July 27, 2022. Six months ago, Russian President Vladimir Putin sent troops into Ukraine in an unprovoked act of aggression, starting the largest military conflict in Europe since World War II. Putin expected a quick victory but it has turned into a grinding war of attrition. Russian offensive are largely stuck as Ukrainian forces increasingly target key facilities far behind the front lines. (AP Photo/Evgeniy Maloletka, File)
FILE - Ukrainian self-propelled artillery shoots towards Russian forces at a frontline in Kharkiv region, Ukraine, July 27, 2022. Six months ago, Russian President Vladimir Putin sent troops into Ukraine in an unprovoked act of aggression, starting the largest military conflict in Europe since World War II. Putin expected a quick victory but it has turned into a grinding war of attrition. Russian offensive are largely stuck as Ukrainian forces increasingly target key facilities far behind the front lines. (AP Photo/Evgeniy Maloletka, File)© Provided by Associated Press

In a major symbolic victory in April, the flagship of Russia's Black Sea Fleet, the Moskva missile cruiser, exploded and sank while on patrol after reportedly being hit by a Ukrainian missile. That dealt a heavy blow to Russia's pride and forced it to limit naval operations.

Related video: Where Ukraine war stands after 6 months since Russian invasion?

Well for some more analysis on this conflict, which, as I've been
Loaded15.76%
Current Time 0:01
Duration 3:48
Where Ukraine war stands after 6 months since Russian invasion?
0

Another big win for Ukraine came when Russian troops pulled back from strategic Snake Island, located on shipping lanes near Odesa, following relentless Ukrainian attacks. The retreat reduced the threat of a seaborne Russian attack on Odesa, helping pave the way for a deal to resume Ukrainian grain exports.

Russia suffered a new blow this month when a series of explosions at an airbase and munitions depot in Crimea. While Kyiv stopped short of taking credit for the blasts, there was no doubt about Ukrainian involvement. The Russians acknowledged that sabotage was behind one blast and alleged unsafe handling of munitions caused another — an explanation ridiculed by Ukraine.

FILE - In this photo released by Russian Defense Ministry Press Service on July 2, 2022, a Russian Su-25 ground attack jet fires rockets on a mission at an undisclosed location in Ukraine. Six months ago, Russian President Vladimir Putin sent troops into Ukraine starting the largest military conflict in Europe since World War II. (Russian Defense Ministry Press Service via AP, File)
FILE - In this photo released by Russian Defense Ministry Press Service on July 2, 2022, a Russian Su-25 ground attack jet fires rockets on a mission at an undisclosed location in Ukraine. Six months ago, Russian President Vladimir Putin sent troops into Ukraine starting the largest military conflict in Europe since World War II. (Russian Defense Ministry Press Service via AP, File)© Provided by Associated Press

The explosions, which were followed by drone attacks, underlined the vulnerability of Crimea, which holds symbolic value for Russia and is key to sustaining its operations in the south. They demonstrated that Ukrainian forces are capable of striking far behind the front line, and Ukrainian officials warn that the 19-kilometer (12-mile) Crimean bridge, the longest in Europe, could be the next target.

LIVES LOST AND DISRUPTED

Both Russia and Ukraine mostly focus on the casualties they inflict on each other, avoiding mention of their own losses.

But Ukraine's military chief, Gen. Valerii Zaluzhnyi, said Monday that nearly 9,000 Ukrainian soldiers have been killed in action.

The Russian Defense Ministry last reported its casualties on March 25, one month into the war, when it said 1,351 soldiers had been killed and 3,825 were wounded.

Western estimates of Russian dead have ranged from more than 15,000 to over 20,000 — more than the Soviet Union lost during its 10-year war in Afghanistan.

FILE - In this photo released by the Russian Defense Ministry Press Service on July 22, 2022, Russian soldiers fire a 2S4 Tyulpan self-propelled heavy mortar from their position at an undisclosed location in Ukraine. Six months ago, Russian President Vladimir Putin sent troops into Ukraine starting the largest military conflict in Europe since World War II. (Russian Defense Ministry Press Service via AP, File)
FILE - In this photo released by the Russian Defense Ministry Press Service on July 22, 2022, Russian soldiers fire a 2S4 Tyulpan self-propelled heavy mortar from their position at an undisclosed location in Ukraine. Six months ago, Russian President Vladimir Putin sent troops into Ukraine starting the largest military conflict in Europe since World War II. (Russian Defense Ministry Press Service via AP, File)© Provided by Associated Press

The Pentagon said last week that between 70,000 to 80,000 Russian troops have been killed or wounded in action — losses that have eroded Moscow's capability to conduct big offensives.

The U.N. High Commissioner for Human Rights has recorded over 5,500 civilian deaths in the war, but noted the actual numbers could be significantly higher.

The invasion has created the largest postwar refugee crisis in Europe. The U.N. refugee agency says a third of Ukrainians have fled their homes, with more than 6.6 million displaced within the country and over 6.6 million more across the continent.

WHAT'S NEXT?

The war's outcome will depend on the ability of Russia and Ukraine to muster additional resources.

While Ukraine has conducted a mobilization and declared a goal to form a 1 million-member military, Russia has continued to rely on a limited contingent of volunteers, an approach reflecting Kremlin fears that a mass mobilization could fuel discontent and destabilize the country.

Moscow has opted for interim steps, trying to encourage people to sign contracts with the military, increasingly engaging private contractors such as the Wagner Group, and even rounding up some prisoners for service — half-measures unable to meet the needs for any big offensives.

“Unless Russia mobilizes its population and mobilizes its industry, it cannot bring to bear the weight of people and industry in order to create a much bigger, more effective force, and therefore, it will have to consider how it hangs on to what it has already taken,” retired British Gen. Richard Barrons said.

FILE - Ukrainian servicemen of "Fireflies" reconnaissance team jump from the trunk of pickup to take their position at the frontline in Mykolaiv region, Ukraine, Aug. 8, 2022. Six months ago, Russian President Vladimir Putin sent troops into Ukraine in an unprovoked act of aggression, starting the largest military conflict in Europe since World War II. Putin expected a quick victory but it has turned into a grinding war of attrition. Russian offensive are largely stuck as Ukrainian forces increasingly target key facilities far behind the front lines. (AP Photo/Evgeniy Maloletka, File)
FILE - Ukrainian servicemen of "Fireflies" reconnaissance team jump from the trunk of pickup to take their position at the frontline in Mykolaiv region, Ukraine, Aug. 8, 2022. Six months ago, Russian President Vladimir Putin sent troops into Ukraine in an unprovoked act of aggression, starting the largest military conflict in Europe since World War II. Putin expected a quick victory but it has turned into a grinding war of attrition. Russian offensive are largely stuck as Ukrainian forces increasingly target key facilities far behind the front lines. (AP Photo/Evgeniy Maloletka, File)© Provided by Associated Press

Ukraine also lacks resources for any quick reclamation of its territory, with Barrons estimating it could take well into next year to amass a force capable of driving the Russians out.

“It can only do it if the West provides political will, money at about $5 to 6 billion a month, weapons like long-range artillery, the ammunition that supports that artillery and then enables the logistics and medical support that allows Ukraine to build a million-strong army,” said Barrons, co-chair of the consulting group Universal Defence & Security Solutions.

He said the West should be prepared to continue supporting Ukraine for a long time, despite soaring energy prices and other economic challenges stemming from sanctions imposed on Russia.

Abandoning Ukraine, he said, would send a message “to Russia and China and everybody else that the West does not have the stomach to stand up for its friends or even its own interests.”

___

Associated Press writers Danica Kirka in London and Yuras Karmanau in Tallinn, Estonia, contributed.

___

Follow AP's coverage of the war in Ukraine at https://apnews.com/hub/russia-ukraine

FILE - Rising smoke can be seen from the beach at Saky, Aug. 9, 2022, after explosions were heard from the direction of a Russian military airbase near Novofedorivka on the Crimean Peninsula, annexed by Russia in 2014. Six months ago, Russian President Vladimir Putin sent troops into Ukraine, starting the largest military conflict in Europe since World War II. (UGC via AP, File)
FILE - Rising smoke can be seen from the beach at Saky, Aug. 9, 2022, after explosions were heard from the direction of a Russian military airbase near Novofedorivka on the Crimean Peninsula, annexed by Russia in 2014. Six months ago, Russian President Vladimir Putin sent troops into Ukraine, starting the largest military conflict in Europe since World War II. (UGC via AP, File)© Provided by Associated Press
FILE - Russian rockets are launched against Ukraine from Russia's Belgorod region at dawn in Kharkiv, Ukraine, Aug. 15, 2022. Six months ago, Russian President Vladimir Putin sent troops into Ukraine in an unprovoked act of aggression, starting the largest military conflict in Europe since World War II. Putin expected a quick victory but it has turned into a grinding war of attrition. Russian offensive are largely stuck as Ukrainian forces increasingly target key facilities far behind the front lines. (AP Photo/Vadim Belikov, File)
FILE - Russian rockets are launched against Ukraine from Russia's Belgorod region at dawn in Kharkiv, Ukraine, Aug. 15, 2022. Six months ago, Russian President Vladimir Putin sent troops into Ukraine in an unprovoked act of aggression, starting the largest military conflict in Europe since World War II. Putin expected a quick victory but it has turned into a grinding war of attrition. Russian offensive are largely stuck as Ukrainian forces increasingly target key facilities far behind the front lines. (AP Photo/Vadim Belikov, File)© Provided by Associated Press
FILE - A Russian serviceman guards an area of the Zaporizhzhia Nuclear Power Station in territory under Russian military control, southeastern Ukraine, May 1, 2022. Moscow and Kyiv have traded accusations of shelling the Russia-occupied Zaporizhzhia nuclear power plant, Europe's largest, that fueled fears of a nuclear disaster. (AP Photo, File)
FILE - A Russian serviceman guards an area of the Zaporizhzhia Nuclear Power Station in territory under Russian military control, southeastern Ukraine, May 1, 2022. Moscow and Kyiv have traded accusations of shelling the Russia-occupied Zaporizhzhia nuclear power plant, Europe's largest, that fueled fears of a nuclear disaster. (AP Photo, File)© Provided by Associated Press