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Defense Primer: Department of the Navy


One   M  ilitary Departrent with Two
Military   Services
The Department of the Navy (DON) is a single military
department that includes two military services-the Navy
and the Marine Corps. As such, DON has a single civilian
leader, the Secretary of the Navy, and two four-star military
service chiefs-an admiral whose title is the Chief of Naval
Operations (CNO), and a general whose title is the
Commandant  of the Marine Corps. Although the title
Secretary of the Navy includes only the term Navy, the
secretary serves as the civilian leader for both the Navy and
Marine Corps. The CNO and the Commandant of the
Marine Corps are members of the Joint Chiefs of Staff
(JCS).

Naval Refers to Both the Navy and
Marine Corps
Although the term naval is often used to refer specifically
to the Navy, it more properly refers to both the Navy and
Marine Corps, because both the Navy and Marine Corps are
naval services. Even though the Marine Corps sometimes
operates for extended periods as a land fighting force (as it
has done in recent years, for example, in Afghanistan and
Iraq), and is often thought of as the country's second land
army, it nevertheless is, by law, a naval service. 10 U.S.C.
8001(a)(3) states that The term 'member of the naval
service' means a person appointed or enlisted in, or
inducted or conscripted into, the Navy or the Marine
Corps. DON  officials sometimes refer to the two services
as the Navy-Marine Corps team. See also the section below
entitled The Naval Service.

Na y in DOD Budget Documents Can
Mean DON
DOD  budget documents that divide the DOD budget into
four military departments often label those departments as
Army, Navy, Air Force, and Defense-Wide. In using data
from such documents, it is important to remember that the
category called Navy in these cases refers to the
Department of the Navy, and thus includes funding for both
the Navy and Marine Corps.

Blue   Dollars   and   Green Dollars in
DON Budget
People who work with the DON budget sometimes refer to
blue dollars, meaning funding in the DON budget for the
Navy, and green dollars, meaning funding in the DON
budget for the Marine Corps. Of the more than two dozen
appropriation accounts that form DON's budget, many
contain funding specifically for either the Navy or Marine
Corps. For example, the Operation and Maintenance, Navy
(OMN),  appropriation account contains operation and
maintenance funding primarily for the Navy, while the
Operation and Maintenance, Marine Corps (OMMC),


Updated February 11, 2021


appropriation account contains operation and maintenance
funding for the Marine Corps.

A few DON  appropriation accounts include funding for
both the Navy and Marine Corps, even though their titles
refer only to the Navy. For example, the Aircraft
Procurement, Navy (APN) appropriation account funds the
procurement of both Navy and Marine Corps aircraft, and
the Research, Development, Test, and Evaluation, Navy
(RDTEN)  account includes research and development
funding for both the Navy and Marine Corps. The
Procurement of Ammunition, Navy/Marine Corps
(PANMC)   account includes funding for procuring both
Navy and Marine Corps ammunition.

The Navy's shipbuilding account, known formally as the
Shipbuilding and Conversion, Navy (SCN) appropriation
account, funds the procurement of various types of ships,
including amphibious ships. Although amphibious ships are
Navy ships operated by Navy crews, the primary function
of amphibious ships is to transport Marine Corps personnel
and equipment and support Marine Corps ship-to-shore
movements  and Marine Corps operations ashore. The
Navy's amphibious ships are sometimes referred to
informally as the Gator Navy, a shortening of the term
alligator, an animal that, like the Marine Corps, can move
from the water to land, and then back into the water.

DON Budget
DON's  proposed budget for FY2021 requested a total of
$207.1 billion, of which, DON stated, $161.0 billion
(77.8%) was for the Navy and $46.0 billion (22.2%) was
for the Marine Corps. In terms of appropriation groups,
about 26.7% of DON's proposed FY2021 budget was for
military personnel, about 34.1% was for operations and
maintenance, about 27.6% was for procurement, about
10.4% was for research and development, and about 1.3%
was for infrastructure.

DON Personnel
DON's  proposed budget for FY2021 requested a total of
850,101 personnel, including 531,900 active-duty
uniformed personnel (62.6%), 97,300 reserve personnel
(11.4%), and 220,901 civilian personnel (26.0%). The
budget requested a total of 604,605 Navy personnel
(347,800 active-duty, 58,800 reserve, and 198,005 civilian),
or about 71.1% of the total requested for DON, and a total
of 245,496 Marine Corps personnel (184,100 active-duty,
38,500 reserve, and 22,896 civilian), or about 28.9% of the
total requested for DON.

Coast   Guard in Relation to DON
Unlike DON, which is part of DOD and is covered (along
with the Departments of the Army and Air Force) in the
U.S. Code primarily in Title 10, the Coast Guard is part of


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