there were no battles in the us
The atomic bomb was the first nuclear weapon ever made during World war two and it was the first weapon that have been tested before Hiroshima was under attack.
The first attack was made by Sgt Lee, piloting the sub TURTLE, built by David Bushnell in 1776 during the Revolutionary War.
during the end when he made a giant scorpion attack him in camp half-blood
The Germans believed the ships were carrying war supplies to the Allies.
During the final stages of World War II in 1945, the United States conducted two atomic bombings against Japan in the cities of Hiroshima and Nagasaki.
The first attack in ww.2 was made by the Germans against the Josh's who lived in Berlin but this attack was only the beginning of the war the second attack was issued by japan against the Chinese solder's in 1939 they Japanese officers ordered to excute all the Chinese prisoners and burn them alive
Promises varied by treaty. Implicit promises were not to massacre or attack, others included land and money.
During World War 2, and it was made by test reactors.
During World War 2 by the Americans. See the Manhattan Project
Germany did not attack Switzerland during World War II because Switzerland was a neutral country and had a strong defense system that made it difficult for Germany to invade. Additionally, Switzerland provided important financial services to both the Allies and Axis powers, which helped maintain its neutrality.
Serbia Yugoslavia
If we are talking about World War One and the side of the US, Japan made the first attack, launching the country into the war. It was they error as it brought total destruction for the Japanese.