Yes, America does possess hydrogen bombs
Countries known to have hydrogen bombs in their possession include the United States, Russia, China, France, and the United Kingdom. Israel is also believed to possess nuclear weapons including hydrogen bombs, though they have not officially confirmed this.
Hydrogen bombs are not specifically banned under international law. However, the use of such weapons would likely violate the principles of humanitarian law due to their destructive power and potential for widespread civilian harm. Countries that possess nuclear weapons are expected to use them in accordance with international law and principles.
Atomic bombs, not hydrogen..The U.S. in August 1945.
The main difference between atomic bombs and hydrogen bombs is the source of their energy. Atomic bombs rely on nuclear fission (splitting atoms), while hydrogen bombs use a two-stage process involving both fission and fusion (combining atoms). Hydrogen bombs are more powerful and destructive than atomic bombs.
Of course, hydrogen bombs are real from more than 60 years.
Britain and Germany, amongst others, were also developing atomic bombs. You don't allow your enemies in a war know what you are doing!
No.
There were no hydrogen bombs (fusion bombs) detonated during WWII.
They never used hydrogen bombs in Japan. They used nuclear bombs which produces gamma rays not the lethal doses of x-rays produced by the hydrogen bomb.
Various countries are known to possess hydrogen bombs, including the United States, Russia, China, France, and the United Kingdom. North Korea has also claimed to have successfully tested a hydrogen bomb.
Hydrogen bombs have never been used in war. They have only been exploded in test shots.
Of course not, it was just for fun (by the way the bombs at Hiroshima and Nagasaki were uranium bombs and not hydrogen)