Columbia subject headings:
Egypt--History, Military.
Egypt--Military relations--Yemen (Republic)
Yemen (Republic)--History--1962-1972.
Yemen (Republic)--Military relations--Egypt.
Harvard subject headings:
Egypt--History, Military.
Egypt--Military relations--Yemen (Republic)
Yemen (Republic)--History--1962-1972.
Yemen (Republic)--Military relations--Egypt.
Princeton subject headings:
Egypt--History, Military.
Egypt--Military relations--Yemen.
Yemen--History--1962-
Yemen--Military relations--Egypt.