The pump: Most insulin pumps are about the size of a pager, and contain a reservoir of insulin, the pumping mechanism, battery, computer chip and screen. They are outside of the body, so they are called external pumps.
The mission of the Marine Reserve is to augment and reinforce active. Marine forces in time of war, national emergency or contingency. operations, provide personnel and operational tempo relief for the. active forces in peacetime and provide service to the community.
1 Since the Marine Corps is an expeditionary force, Marine Corps aircraft are also relied upon to transport Marines and their equipment. 2  To accomplish these objectives, the Marine Corps maintains an extensive fleet of aircraft dedicated specifically to our men and women in action.