A war crime has a rather distinct definition in that it’s a warcrime for those who initiated it for example US troops double tapping Japanese troops because they kept playing dead to pull the pin on their grenades or booby trapping the dead and dying, this also largely targeted medics which is an even bigger war crime. Point is the fire bombing, carpet bombing, and nukes were definitionally not war crimes least of all because they weren’t listed in any accords, conventions, or treatise. You can make the argument they were immoral or dishonorable but by definition crimes even war crimes are legalistic by nature meaning lots of ifs, and/ors, and buts.

Also I don’t really give a fuck for any of the former Axis with maybe the exception of the puppet governments, Romania, and Finland. Call it old propaganda doing it’s work but the best outcome for the war was the absolute destruction of Fascist and Imperial ideology, given their current resurgence you can imagine my opinions on shitholes like the US, Russia, and China. Almost makes you wish for a nuclear winter.