"1000" . "1920" . . . . . . "1920" . . . . . "1st Battalion, 25th Marines" . . . . . . . "1st Battalion" . . "Semper Fidelis" . . . "1st Battalion, 25th Marines" . . . "1st Battalion/25th Marine Regiment \"New England's Own\"" . . . . . "To locate, close with, and destroy the enemy by fire and maneuver, or repel the enemy's assault by fire and close combat." . . . .