See: Atomic bombings of Hiroshima and Nagasaki.
2+2=4
Well first of all the Japanese wanted to take over the pacific, so there first task whas bomb the Americans, ( Pearl Harbor ), Do to how the Americans forces were to strong for them to take by regular war, so they did the element of suprise.
it will probably take centuries
they need money to rebuild and i do not konw
3years?
about 2 years
it took about a year and a half
August 6 in 1940 was the day Hiroshima, Japan was bombed. On August 9 they bombed Nagasaki since the Japanese refused to surrender. After that Emperor Hirohito decided to surrender. Good answer, except for the year quoted!
about 13 years
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