Columbia subject headings:
Aeronautics, Military.
Aeronautics--Law and legislation.
Air warfare (International law)
Neutrality.
War (International law)
Harvard subject headings:
Aeronautics, Military
Aeronautics--Law and legislation
Air warfare (International law)
Neutrality.
War (International law)
Princeton subject headings:
Aeronautics, Military.
Aeronautics--Law and legislation.
Air warfare (International law)
Neutrality.
War (International law)