Sentences with phrase «main nuclear weapons test»

Lying far above the Arctic Circle, the Russian archipelago of Novaya Zemlya is one of the most remote places on Earth, which is precisely why these mountainous, wind - swept islands were used as the Soviet Union's main nuclear weapons test site from 1955 to 1990.

Not exact matches

South Korea's main spy agency told politicians in a closed - door briefing after the test that it does not think Pyongyang currently has the ability to develop miniaturised nuclear weapons which can be mounted on ballistic missiles, but intelligence officials expressed worries that the North's efforts to do so are progressing quicker than previously thought, said Kim Byungkee, of the opposition Minjoo Party.