"Once you’ve reached the level cap, power increases are primarily determined by your equipment. The best equipment can be acquired by taking on the toughest challenges: Flashpoints, Operations, and Warzones. You can earn commendations by queuing up for difficult group content in Group Finder. These can be traded for gear that is best suitable in Flashpoints and Operations (PvE). Queuing up for Warzones will earn you commendations which can be traded for gear that is best suitable against other players (PvP). Gear vendors are located on the Fleet, in the Supplies and Combat Training wings."