Guerilla

They became guerilla fighters, hiding out in the jungles.

For nearly 20 years, Jesse James stayed one step ahead of the law. But he was not just a gunslinger, he was a ruthless gang member — and a former Confederate [a supporter of the Confederate states that seceded during the U.S. Civil War] guerilla.

Not a cessation of poaching, but a succession of village guerillas;—an internecive war between the gamekeepers and marauders of game;—the whole country flung into brawls and convulsions, for the unjust and exorbitant pleasures of country gentlemen.

1912, Charles Egbert Craddoc (pseudonym of Mary Noailles Murfree), “The Crucial Moment” in The Raid of the Guerilla and Other Stories, Philadelphia: Lippincott

From mother and nurse it was a guerilla gunfire of commands, and blithe, quicksilver disobedience from the three blonde, never-still little girls.

At Fengsien, 45 kilometres due south of Shanghai, a Japanese force attacked a band of 400 guerillas at 4 a.m. on August 13, putting them to flight.

He was telling Keng about the tactical agreement he had made with the guerillas in Muping and of his interviews with Shen Hung-lieh, chairman of the Shantung provincial government, when they suddenly heard a commotion outside.[…] "Comrades," he said, "we are all guerilla soldiers who have joined hands to protect our own people, not to oppress them.

KYODO also states that, according to Indian intelligence sources, "the guerillas were sent from their training bases around Khasgar in Xingjiang^([sic – meaning Xinjiang]) Province [in China] to the sensitive areas bordering Afghanistan".