According to the video, Operation Dominic I was prompted by the "Soviet resumption of testing in 1961 after a three-year moratorium." The three main purposes of the series were the "proof testing" of new weapon designs, mainly thermonuclear; obtaining weapons effects data as it related to the electromagnetic pulse phenomenon and attenuation of radar; and obtaining data related to the offensive and defensive aspects of an incoming ballistic missile in a detonation environment.<br /><br />Dominic I tests were conducted in three general locations: Johnston Island, airdrop and high-altitude detonations; Christmas Island, staging area for 24 airdrop tests; and the open ocean, launch of a Polaris missile from a submarine and subsequent detonation of a device in a reentry vehicle, and the detonation of a device carried by an antisubmarine rocket (ASROC).<br /><br />Approximately 28,000 military and civilian personnel participated in the test series. More than 200,000 tons of supplies, construction materials, and diagnostic equipment were shipped or airlifted to the test areas.<br /><br />Most of the devices were detonated in the air after being dropped from a B-52 bomber. Five high-altitude bursts, designated as Operation Fishbowl tests, were lofted by rockets. Their purpose was to study the effects of nuclear detonations as defensive weapons against incoming ballistic missiles.
