Irregular military is any military component distinct from a country's regular armed forces, representing non-standard militant elements outside of conventional governmental backing. Irregular element
Chouans hiding behind a dolmen
British SAS patrol in armed jeeps during the North African campaign of World War II
A group of Ottoman bashi-bazouks in Bulgaria, irregular soldiers of the military of the Ottoman Empire, 1877–1878
Gardner's Irregular Horse of Hindustani Mahomedans
Guerrilla warfare is a type of unconventional warfare in which small groups of irregular military, such as rebels, partisans, paramilitary personnel or armed civilians use ambushes, sabotage, terroris
Irregular military
…Revolutionary – someone part of a revolution, whether military or not. Guerrilla – someone who uses unconventional military tactics. The term tends to refer to groups engaged in open conflict, rather than underground resistance. It…
Guerrillas of the Greek People's Liberation Army in Xanthi during World War II
The classic "3-phase" Maoist model as adapted by North Vietnam's Ho Chi Minh and Võ Nguyên Giáp.
Boer guerrillas during the Second Boer War in South Africa
Main Force 274 Regiment versus 11th Armored cav, 1966, Vietnam