I completely disagree with this type of unnuanced view. yeah war generally is point less so this could be said about every country that has had war. korea was proxy and viet nam was kinda taken over from france. in proxy wars either side could stop being involved. The sudden attacks on venezuela and iran are really out of no where. I would say the closest we have to this is the second iraq but even then they spent a bunch of time at least trying to rationalize it. Up until now many allies have been involved before moves were made.