Columbia subject headings:
Military history, Modern--20th century.
Preemptive attack (Military science)
Surprise.
World politics--20th century.
Harvard subject headings:
Military history, Modern--20th century
Preemptive attack (Military science)
Surprise (Military science)
Surprise.
World politics--20th century
Princeton subject headings:
Military history, Modern--20th century.
Preemptive attack (Military science)
Surprise.
World politics--20th century.