a skirmisher is a soldier usually sent ahead of a main body of troops to harass the enemy. groups of skirmishers may also be placed on the flanks to prevent a surprise attack or flanking maneuver. a skirmish is a term first used in the 14th century. it meant a small-scale fight between two opposing forces or a preliminary battle involving troops in front of the main force. skirmishers were those involved in the fight or battle. it comes from the old french "eskirmir" "to defend". skirmishers were usually infantry or cavalry soldiers who formed a skirmish line ahead or next to friendly troops.