Columbia subject headings:
United States--Armed Forces--Periodicals.
United States--Defenses--Periodicals.
Harvard subject headings:
Armed Forces--Periodicals
United States--Armed Forces--Periodicals.
United States. Armed Forces--Periodicals.
Princeton subject headings:
Periodicals.
United States--Armed Forces--Periodicals.
United States--Defenses--Periodicals.
United States--Military policy--Periodicals.