Harry S. Truman.
Which President? US or UK. Since US is the first country to use nuclear weapons, then I assume that you are asking who was the US president during world war two while nuclear testing? Answer: Truman.
The United States of America used the first nuclear weapon in war, when they bombed Japan.
For the United States military, the final authority to direct the use of nuclear weapons is the President of the United States. This also requires the approval of an administrative official who has been approved by Congress.
The Manhattan Project WW2. First test and use in 1945, test in NewMexico, use at Hiroshima, Japan.
Truman was the only president to authorize nuclear weapons usage. It ended WW2.
Truman
He was the first and only President to authorize the use of nuclear weapons on an enemy force.
the president is allowed too
Harry S. Truman.
Harry S. Truman.
Which President? US or UK. Since US is the first country to use nuclear weapons, then I assume that you are asking who was the US president during world war two while nuclear testing? Answer: Truman.
First use of nuclear weapons in war.
Only the President of the United States has the authority to authorise the use of nuclear weapons. Governors cannot commit armed troops, let alone nuclear weapons, to combat.
It wasn't a president, it was a general. The president fired the general and refused to authorize use of nuclear weapons.
No, Nazi Germany had no nuclear weapons.
Although US agreed several arms agreements banning use of nuclear weapons, USA DOES use nuclear weapons and in fact, US is the ONLY nation to have used nuclear weapons in war.