Uniforms of the United States Marine Corps

The United States Marine Corps (USMC) prescribes several types of military uniform to distinguish its service members from other armed services, depending on the situation. Among current uniforms in the United States Armed Forces, the dress uniforms of the USMC have been in service the longest; the Marine Dress Blue uniform has, with few changes, been worn in essentially its current form since the late 19th century.

Source: Wikipedia — Uniforms of the United States Marine Corps (CC BY-SA 4.0)