Did you know? The Marine Corps' Dress Blues is the only uniform in the U.S. military designated to include the red, white, and blue colors of the American flag. This distinctive uniform Male Officer Blue Dress Package The MARINE Shop DVIDS News Blue dress uniform represents Corps' history When others hold back, Marines advance. The Mameluke sword, which now graces the dress uniform of every Marine Officer, symbolizes a legacy established through the crucible of combat. Halfway across the world, Marines want to wear dress uniform for graduation, school said no