Because it demonstrated that a nuclear bomb obliterated all ability of Japan to continue the war.
by the dropping of the atomic bombs on Hiroshima and Nagasaki.
To end the war and to collapse Japan's means to make war.
That was the beginning for the US. The end was dropping the A-bombs.
Dropping two atomic bombs
The dropping of the Atomic Bombs was considered the beginning of the end of World War 2. It did motivate Emperor Hirohito to surrender.
Dropping nuclear bombs on Japanese cities Hiroshima and Nagasaki. This Influenced the Japs to surrender.
The Battle of Midway and the dropping of the atomic bombs on Hiroshima and Nagasaki led to the end of World War II.
The dropping of two atomic bombs on Japan quickly led to Japan's surrender.
Those bombs made the war end and collapsed Japan's means war ever again.
Dropping the atom bombs on Nagaski & Hirowskima
By capturing the German city of Berlin and dropping two Nuclear bombs on Japan (Okinawa and Nagasaki).
The military action of the United States dropping atomic bombs on the cities of Hiroshima and Nagasaki in Japan brought a dramatic end to World War 2. The war lasted from 1939 to 1945.