Why did the u.s. use nuclear weapons against Japan in 1945?

Answer 1

because to invade japan it would cost millions of casualties on both the allied side and the japanese side. which one would you choose? losing 1 million people to end the war quicker or lose close to 30 million on a costly long invasion?

Answer 2

Yes, the USA dropped two Atomic bombs on Japan. Something many don't remember is that it was WAR! A declared war fought between two countries. The problem I have is let's say the USA didn't drop the bombs, we invade Japan, millions die. How is an invasion of the Japanese home islands better?

Answer 3

Winter - The war in Europe was over by the time the A-bomb was ready, otherwise we would certainly have dropped in on Germany.

We also did not blockade Japan pre-war.

Answer 4

To end the war in a timely fashion and to minimize the insane destruction an invasion would have caused.

Answer 5

There are infinite reasons you could come up with, the one I like is that this is a "Right Not To Be Bombed" planet. The United States reserves the right to attack a country for any arbitrary reason it sees fit, or no reason at all.

Answer 6

We wanted to end the war quickly with minimal US casualties. Without the bomb, we would have had to invade Japan. The civilian death toll would have exceeded a million.

Answer 7

To END WWII and to force Japan to Surrender,
thus saving many lives, believe it or not!!

Answer 8

To end the war and cut down on American casualities.

Answer 9

Also so the Soviet Union could do as little as possible and gain little land.

Answer 10

To save blood, of both sides.