unconventional warfare
不正規戦争
Asymmetric warfare
hybrid warfare
Fourth generation warfare
Irregular military
Irregular warfare
Low intensity conflict
Partisan (military)
Political warfare
psychological warfare
Resistance movement
Terrorism
Unrestricted Warfare
A seminal work on unconventional stay-behind warfare is Major Hans von Dach's Der Totale Widerstand (Total Resistance).
Six-legged Soldiers - A scientific warfare book on another potential form of unconventional warfare, by Jeffrey A. Lockwood
US & NATO specific:
Operation Gladio
Project Eldest Son
Reagan Doctrine
Special Activities Division
U.S. Army Special Forces
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