I've been reading a number of suppressed histories of WWII, written by reputable people at the time. One is Garret Garrett, "The People's Pottage"-- 3 essays "The Revolution Was", "Ex America", and "The Rise of Empire."
The German military offered to turn Hitler over well before the war escalated, and FDR, et al refused. The Japanese offers of surrender preceeded Hiroshima, and have been well known since that time. The acceptance of surrender was refused because the intent was to prove the nuclear bomb in a war time setting. The claims of saving millions of lives were propaganda fed the masses to justify the implementation of the bombs. FDR set up the Lend/Lease program with Russia that actually gave Russia military equipment, munitions and "secrets" to the Russians instead of to our own troops. Before the Rosenbergs, we (our own government) were sharing nuclear secrets with the Russians, and the Russians gladly let us pay for the research and development.
Endless wars serve a number of purposes, we feed trillions of dollars into Marxist UN programs, UN "Peace Keeping Forces" commit more war crimes than any armed forces in the world and there are no consequences, $400 hammers are the norm, because corruption feeds the effete elites. Endless wars are used to convince teh useless idiots that bigger government is the only solution to big world wide problems and the slow march to tyranny never ends.