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.
Marine Corps Deployments. The Marine Corps is a rapid deployment force that can quickly be sent where needed. To carry out its deployment mission, the Marine Corps and the Navy normally operate in conjunction with each other as part of amphibious or air-ground task forces.