The word "guerrilla" is correct and usable in written English.
You can use it to refer to a person or member of an organization that engages in small, independent, and usually violent acts of protest or warfare. Example sentence: "The guerrillas staged a surprise attack on the enemy camp."
"I don't believe that any guerrilla is going to turn in his weapon only to go and die in a US jail," Santos said in March.
There is no love lost between the Farc and the US: Washington put the guerrilla group on its list of terrorist organizations in 1997 and poured billions of dollars of military aid into a campaign to defeat them.
This is a blasted, haunted landscape, populated by demonic child soldiers and a shadowy guerrilla army that slaughters in the bush or under the cover of night.
Despite two years of talks, and agreements on three of the five negotiating points, no ceasefire has been declared and combat between the two forces, ambushes and guerrilla attacks are frequent.
After planting some carrots on the street outside his house, LA resident Ron Finley helped kickstart a guerrilla gardening movement that has now resulted in the city passing a new law to allow free gardens next to sidewalks so communities can grow their own food.
It was all very radical chic, though not all of the urban guerrilla movement's heroes, political or intellectual, would stand up to robust scrutiny now.
At times it has hinged on little more than semantic argument over whether the conflict was "war" (were the Aboriginal fighters guerrilla warriors?) and whether the locally raised militias, police and British military units qualified as an Australian defence force.
States may use guerrilla or terrorist groups as proxies, as Iran and Syria have used Hamas and Hezbollah.
Santos has made achieving peace with the Farc the main priority of his presidency but faces criticism from conservative sectors of Colombian society who feel the 8,000 strong guerrilla force should be defeated militarily.
Security sources said the attackers' guerrilla tactics suggested that they were hired mercenaries from Nigeria's northern neighbours, Chad and Niger.
The so-called "French intifada", the guerrilla war with police at the edges and in the heart of French cities, is only the latest and most dramatic form of engagement with the enemy.
