"Enemy encampments" refers to areas where a group of people who are hostile or against another group have set up a camp or base. It implies that these locations are occupied by the opposing forces. Full definition
Playing as Snake, aka Big Boss, players will sneak into enemy encampments, stalk targets, interrogate enemy agents, and recover secret intel while piecing together the game's story mission by mission. (blog.us.playstation.com)
Upgrades make changing your play style lots of fun as you can either go in shooting up the place with arrows or stealth your way through enemy encampments. (videogamebroadcasts.com)
It seems most everyone knows a family member, friend or co-worker who experienced a divorce that turned ugly — a divorce in which enemy encampments grew around the two spouses, with friends and family taking sides, and divorce lawyers serving as generals in the two warring armies. (springfieldcollaborativedivorce.com)