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.
These are the main missions that are outlined to some, or all of, the reconnaissance assets in the Marine Corps: 1  Plan, coordinate, and conduct amphibious-ground reconnaissance and surveillance to observe, identify, and report enemy activity, and collect other information of military significance.