The problem with warfare today is Drones and missiles

 What do I mean by this?

The problem is that if the aggressor is using drones and missiles it is then possible that the aggressor loses no soldiers or no one on their side dies at all.

This is the main problem of warfare today. We see it in the U.S. on a domestic level when people use guns on each other. In the past when I grew up people didn't use guns very much unless they were the Mafia. Regular people didn't use guns that much on other people. 

But, something happened between the 1950s and the Viet Nam War and after where people changed and stopped thinking about each other with respect. It might be partly because less people believe in God and religions so people are becoming less domesticated and more animal like in their behavior.

So, guns have become more of a plague here in the U.S. especially because of a lack of respect for human life among many people.

And Likewise, the lack of respect of other cultures and governments also has had an effect on warfare in general in regard to drones and missiles.

Of the two I would say that drones are actually the bigger problem now in what you see in places like Ukraine and Israel and Yemen and throughout the Middle East. So, the more a group of people disrespects another group of people the more I think drones and missiles will be used just like AR-15s and Kalashnikovs are used by the average person in the U.S. on other average people.

So, the lack of respect for human life or other cultures or religions is the driving force behind wanton killing of others more worldwide.

So, once again the problem with warfare today is Drones and Missiles.