1957 Soviet nuclear tests
The Soviet Union's 1957 nuclear test series was a group of 16 nuclear tests conducted in 1957. These tests followed the 1956 Soviet [nuclear tests] series and preceded the 1958 Soviet nuclear tests series.
The Soviet Union's 1957 nuclear test series was a group of 16 nuclear tests conducted in 1957. These tests followed the 1956 Soviet [nuclear tests] series and preceded the 1958 Soviet nuclear tests series.