Columbia subject headings:
Harvard subject headings:
United States--Armed Forces--Reserves--Operational readiness.
United States--Armed Forces--Reserves.
United States--Defenses.
United States--Military policy.
United States--National Guard--Operational readiness.
United States--National Guard.
United States. Army Reserve--Operational readiness.
United States. Army--Reserves.
Princeton subject headings:
United States--Armed Forces--Reserves.
United States--Defenses.
United States--Military policy.
United States--National Guard.
United States. Army--Reserves.