Desert Rock was the code name of a series of exercises conducted by the US military in conjunction with atmospheric nuclear tests.
Their purpose was to train troops and gain knowledge of military maneuvers and operations on the nuclear battlefield.
Psychological tests were conducted at shots Charlie, Fox, and George to determine the troops' reactions to witnessing a nuclear detonation.
A test of an armored task force, RAZOR, was conducted at shot Apple 2 to demonstrate the capability of a reinforced tank battalion to seize an objective immediately after a nuclear detonation.
At shot Hood, the Marine Corps conducted a maneuver involving the use of a helicopter airlift and tactical air support.