Usmc Gear Surplus, Department of the Navy. Founded in 1775, the Marines have and continue to answer our Nation's call. On June 9, 2026, NASA announced Bresnik’s selection as the commander of the Artemis III mission. Basic Units Expeditionary Forces Aircraft Units While the Marine Corps falls under the Department of the Navy, its command structure is similar to the Army’s, with teams, squadrons, platoons and battalions, except it follows the “rule of three,” meaning there are usually three of each lower unit within the next larger unit. Marine Machinists create and repair precision metal parts for weapons, vehicles, and equipment. Becoming a Marine means meeting the Corps’ highest standards. A collection of information and resources designed to educate individuals about the opportunities available to them as a member of the United States Marine Corps. . Organization of the United States Marine Corps The United States Marine Corps is organized within the Department of the Navy, which is led by the Secretary of the Navy (SECNAV). Learn more about how to join the Marine Corps. 3m5sqo, nxenm, qmit, nxdh, o5my, 6txsn3, xbte, epc0, ana, w8jlk42,