This 1967 Coast Guard film ("Ngung Lai") chronicles the Coast Guard cutter patrols along the Vietnamese coast.
VIDEO HERE (26:18 minutes)
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And a look at today's Coast Guard:
Director Stuart Calcote’s High-Definition camera crew spent twelve days aboard the Mohawk as it sailed on a course from Key West, Florida, to Roosevelt Roads Naval Base in Puerto Rico. Every aspect of the crew’s life and work on board the Mohawk was documented. From early morning revelry to taps at night, from high above the bridge to the depths of the engine room, this program follows the lives of the U.S.S. Mohawk’s officers and crew as they guard the shores of America.
VIDEO HERE (50:05 minutes)