Lets talk about THE TRUTH OF THE WW2

Besically allies supported empire of japan before ww2 to take profits and rights of control of Manchuria from Russia and China.

Allies was using Japan as underdogs of proxy war against Russia and China at that time.

But japan did not give enough intarests of Manchuria to allies,

So allies ,especially international bankers,
get huge anger by it.
So allies did hardest economical sanctions on japan ,based on the Hull note.
https://en.m.wikipedia.org/wiki/Hull_note

Japan lost the suppey chain of the oil and iron. And almost being dead nation of hell.

After that chinese military and terrorist started to attack japan at Manchuria by support of the Allies

So japan have to go to south east asia and central asia to get the oil and iron to survive no matter what.

But USA had military base at Hawaii which is very near of japan
So japan did Pearl Harbor as self defense purpose which just attacked military base and not aimed at civilians.

USA used this as reason of attack japan as like exactly the same tactics of 911

USA did mass carpet bombing of Tokyo ,Osaka and every big city of japan and huge amounts of civilians were dead in fire.

And USA want to shot Nclear weapon as a experiments to make the situation of cold war to avoid full contact war with Soviet

So unnecessary two atomic bomb was dropped on japan.

900,000 civilians were dead by the result of Atomic bomb and carpet bombing.