fedayeen

definition on wikipedia
"Fedayeen are any of various groups of people known to be volunteers, not connected to an organized government or military, in the Near East. They are usually deployed for a cause where the government has been viewed as failed or non-existent. They are associated with the role of resistance against occupation or tyranny. The name "fedayeen" is used to refer to armed struggle against any form of enslavement with actions based on resistance"

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