Complex sentence: In 1942, the antisubmarine patrols were turned over to the Coast Guard and other agencies and the command was engaged primarily in training replacements for combat units and operational training of units, crews, and individuals for bombardment, fighter, and reconnaissance operations.
Split into simpler sentences: In 1942, the antisubmarine patrols were turned over to the Coast Guard and other agencies and the command was engaged primarily in training replacements for combat units. It conducted operational training of units, crews, and individuals for bombardment, fighter, and reconnaissance operations.