Sweep the valley compound and eliminate any unfriendlies you encounter.
2008, Dennis Wengert, A Very Healthy Insanity (page 44)
You see, the mission of almost every teenage girl on the loose is to first identify the targets, just like a war. These include the primary objective (the boy), the enemy (other girls), the friendlies (sympathetic girl friends and the boy's family), and unfriendlies (other boys).