Jash (Kurdish: جاش, romanized: Caş, lit. 'donkey's foal'), or "" or The Light Regiments or fursan is a type of collaborator, usually a military unit composed of people of Kurdish descent that cooperates with enemy combatants against the Kurdish Army, Kurdish rebels, or the Kurdish civilian population. The term is considered derogatory in a cultural sense, in much the same way as the use of the term quisling in the Western world.