semipalatinsk.
Russia started testing and constructing nuclear, and atomic bombs at the end of WW2. today, they own more the 4000 operational nuclear warheads. along with a total 12000 in storage.
Russia has roughly 3500 nuclear warheads at the time of this writing and the number is slowly falling.
At this time Russia.
Simple. To see if they work.
none
I think they are still testing
America has roughly 10000 nuclear warheads and russia has anywhere from 5200-8800
Those were the only nuclear bombs used in the war. Any nuclear detonation after that - by any country - was only for testing.
when France wanted to do what testing of a nuclear bombs on Moruroa island in the south pacific
china,russia,usa,uk!......
they are allowed more by both SALT & START
a a national park