The United States of America
The United States of America used the first nuclear weapon in war, when they bombed Japan.
1949 when the USSR tested their first atomic bomb.
The US was the first to start testing nuclear weapons
At end of world war two, two were dropped in Japan, which ended the japan - America conflict
The United States of America was the country that developed the first nuclear weapons.
The United States of America
The United States of America used the first nuclear weapon in war, when they bombed Japan.
1949 when the USSR tested their first atomic bomb.
The US was the first to start testing nuclear weapons
The first nuclear weapons were developed in the united States under the Manhattan Proyect which made the first nuclear bombs.
First of all Kid they didn't use Nuclear weapons in WW2...They used two Atomic Bombs
The first Islamic country to have nuclear weapons was Pakistan.
At end of world war two, two were dropped in Japan, which ended the japan - America conflict
the first five countries that were involved in nuclear weapons are as follows;United StatesGermanyGreat BritainRussiaArgentina
1945
The U.S. is first to have nuclear weapons, having nukes since 1945. The Soviet Union followed the U.S. by developing and testing their first nuke in 1949. Both nation started making hydrogen bombs (nukes using nuclear fission to explode) starting in the mid-1950s. Excuse me replying with a question, but were the Atomic bombs dropped on Japan in 1945 Nuclear weapons ? I am assuming they were, but do not know of the differentiation.