The bombs dropped by the atomic bombs on Hiroshima and Nagasaki on August 6, 1945, were the last major weapons test of the Second Cold War.
Their purpose was to test the effects of the atom bomb on the atom itself.
They also gave the Allies a chance to learn how the atomic weapon was made.
The bombs also marked the beginning of a new era of international diplomacy.
In addition to their effect on the war’s destruction, the bombs proved that the Allies could use the atom as a weapon.
“The bomb had an enormous impact on the way people lived,” says Robert C. Walker, a professor emeritus of physics at Columbia University.
“It changed the face of international relations forever.”
But, Walker says, it also changed the way nuclear weapons were used.
“You’ve got a lot of people who were concerned about this being used in the future, who were worried about it being used against the United States, and it became a big deal.”
Walker is a nuclear weapons expert who studies the effects on the environment of nuclear weapons.
He was one of the few people to know about all of the details of the tests before they were conducted.
He says it was a big problem that the bombs were being used for the first time against Japan, not just against the U.S. But, he says, the U-2 spy plane, which was flown by Soviet pilot Yuri Gagarin, found out about the testing after it crashed into the Pacific Ocean.
Walker says he was skeptical of the intelligence he saw on the ground, and he worried about the impact the intelligence would have on the future of nuclear arms treaties.
“I said, well, it seems to be a bit like the Japanese surrender,” Walker says.
“And the Soviets were pretty cool about that.”
He says he got a little bit of help from the Russians, who told him the Soviets weren’t interested in the weapons tests.
Walker recalls that the Soviets didn’t want the U