I fear that any future conflicts will see America as a weak, innefectual country with a leadership that's focussed more on identity political and wokeness than it is on protecting world freedom, while its enemies grow stronger every day.
China is training its forces for war, while the US is currently training its forces in political correctness and using the right pronouns
God Bless America?
More like God Help America (and everybody else because if America falls, we will all fall with it)
The current leadership in the western world as a whole (not just the US) reminds me a lot of Rimmer in the classic Red Dwarf episode "Polymorph" when he chairs a meeting of the crew on how to deal with an alien aggressor;
Only not as funny
China, of course, is not occupying anything. It is scared to death about what North Korea will do--miscalculate and go over a red line. The Korean War certainly wasn't an American "victory", but Chinese casualties were huge--Mao threw away all the loyal soldiers who had put him into power. Then he starved what was left in the "Great Leap Forward".
It is worth noting that the initial American response in Afghanistan was very effective--the special forces and their technology worked wonders. bin Laden is dead because the United States used brains and focused on a do-able objective. The problem was indeed "nation-building". Someone wrote a column in the New York Times saying that the proper response would have been to arm the various factions in Afghanistan (and there are lots of them--the Taliban won't have it easy) and let them fight it out, ravage the country. I guess I am not so keen on that solution either. The trick is to do the minimum that has to be done and get the hell out, not strut around on an aircraft carrier saying "Mission Accomplished".
There is a book called "Unconditional" about the policy of demanding unconditional surrender from Nazi Germany and Japan. The original impetus was to prevent a future fascist government from claiming a "Dolchstoss" and re-arming as Hitler did to reclaim past glory. I agree, but look what it cost.
The US used the atomic bomb on Japan. Before that, LeMay firebombed Tokyo and other cities, and it was worse than even Hamburg or Dresden. The US was reading the Japanese diplomatic code, especially the dispatches to and from the Japanese embassy in Moscow, and knew that the Army and Navy would never agree to unconditional surrender without being forced to. Okinawa and Iwo Jima were designed to be blood baths--the Japanese Army would dig in and fight to the last man--to encourage "war weariness" in the US. (The body of the Japanese general who designed the defenses at Iwo Jima was never found.) Even as the situation in Japan was hopeless, the army was pushing a "peace proposal": (1) the government (couched as the Emporer) would be retained, (2) the army would surrender its arms to its own officers, (3) the Japanese would conduct all war crimes trials--tell that to the people in Nanking, and (4) the occupation would be limited to "isolated points". Truman was tough enough and smart enough to look to the future. The bombs were doled out. Kyoto, the ancient cultural center, was not bombed at all. The "Emperor question" was finessed. Even so, army renegades stormed the Imperial Palace (and killed one of the Emperor's personal household) looking for his recorded surrender address to destroy it. The head of the army committed suicide. It is true that the US Navy made it a point to sink every Imperial Navy ship, even those sitting at anchor without fuel, but in the end there was restraint.
Again, the cost to both sides was enormous. Simple boodlust would have killed many more Japanese, and an American landing would have been opposed with suicide charges of civilians and dug-in military strong points which would have had to be burned out or blown up, and would have lead to enormous American casualties as well.
There is a book by an English professor named Fussel, who came back from the war in Europe wounded and angry--real PTSD. It's called "Thank God for the Atomic Bomb". He didn't have to fight in Japan because of the bomb. You can't argue with his thesis. But he has another book called "Wartime". It tells a story about a Marine who sent the skull of a Japanese soldier home to his girlfriend (there's a picture which was published in "Look" magazine). "I do not mean to say that at this point the United States Marine Corps had sunk to the level of savagery of the Japanese Army--that would come later." (He gives an address of a Buddhist monk in Japan where people can send any "souvenirs" they might have for proper burial.) The war took over Fussel's life, and the lives of many more veterans.
One should do only what is necessary and try to be objective about "necessary". Genocide really doesn't work in the long run. The Nazis tried it in Russia, and lots of people lined up to fight for Stalin, the most murderous tyrant the world has seen.