Demonstrated Destruction of Nuclear Weapons (1967)

Project CLOUD GAP, established in 1963 and jointly conducted by the Department of Defense and ACDA, was an initiative to test the technical feasibility of potential arms control and disarmament measures.

CLOUD GAP culminated in a test of the verified dismantlement of nuclear weapons in summer 1967, designated as Field Test 34. The test was conducted in connection with a U.S. Government proposal to halt the production of fissionable material for use in weapons.

The following declassified records provide background on CLOUD GAP and Field Test 34.
Maintained by Steven Aftergood