Fleet Problem XXI

APRIL

TUE 2 APR 1940
U.S. Fleet departs West Coast for maneuvers in Hawaiian waters. Fleet Problem XXI is the last of the large prewar fleet exercises that mark the culmination of the training year. Conducted in two phases, Parts II and VI of the annual fleet exercises, it takes place in the waters of the Pacific in the vicinity of Hawaii to the westward. Part II exercises two fleets (the augmented Battle Force vs. the augmented Scouting Force) of approximately equal strength, one side concentrated and the other widely dispersed, in scouting, screening, and conducting major fleet engagements. Part VI exercises two fleets of approximately equal strength (the same opponents as in Part II), each dispersed, in scouting, screening, protecting convoys, seizing and defending advanced bases, and conducting major fleet engagements. The worsening world situation will prompt the cancellation of Fleet Problem XXII.