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.
United States Marine Corps Reconnaissance Battalions. The United States Marine Corps Reconnaissance Battalions (or commonly called Marine Division Recon) are the reconnaissance assets of Marine Air-Ground Task Force that provide division-level ground and amphibious reconnaissance to the Ground Combat Element within the United States Marine Corps.