UNDERWATER NUCLEAR TEST 'UMBRELLA' (1958) OPTIONS

With test moratoriums over the horizon, American weapons labs rushed out many new patterns. A hard deadline for testing was set at midnight (0000 hrs), 31 October 1958, as negotiations had been set to begin that day, as well as the timetable exhibits it, with 29 tests executed in October, four of these on the last working day. A person other test w