unconventional warfare

noun

1. warfare that is conducted within enemy lines through guerrilla tactics or subversion, usually supported at least in part by external forces.

Example Sentences

The Quds force that Soleimani led is a branch of Iran's Islamic Revolutionary Guard Corps which specialises in unconventional warfare and military intelligence.

From BBC

The “Gerasimov Doctrine of Hybrid Warfare” blends conventional and unconventional warfare, essentially expanding military battlefield options infinitely — including into cyberspace.

From Washington Times

Russia’s expenditure of its elite troops will have cascading effects, the documents say, including a loss of some ability to train paramilitary groups in unconventional warfare tactics, “which Russia has used to advance its interests abroad.”

From Washington Post

Foreign internal defense and unconventional warfare are core missions of the U.S.

From Washington Times

Russia remains a key suspect, however, partly because of its recent history of bombing civilian infrastructure in Ukraine and propensity for unconventional warfare.

From Washington Post