Columbia subject headings:
Aeronautics, Military--Soviet Union.
Air power.
Europe--Defenses.
Soviet Union. Voenno-Vozdushnye Sily--Tactical aviation--Europe.
Harvard subject headings:
Aeronautics, Military--Soviet Union
Air power.
Europe--Defenses.
Soviet Union. Voenno-Vozdushnye Sily--Tactical aviation--Europe.
Princeton subject headings:
Aeronautics, Military--Soviet Union.
Air power.
Europe--Defenses.
Soviet Union. Voenno-Vozdushnye Sily--Tactical aviation--Europe.