U.S. Marines with 3rd Marine Logistics Group prepare a water bladder Feb. 10 which will serve as a container for pure water produced by the tactical water purification system and will support operations in Sattahip, Chonburi province, Kingdom of Thailand, during exercise Cobra Gold 2013. The exercise includes humanitarian and civic assistance projects, a staff exercise and field training exercises. Joint and multinational training is vital to maintaining the readiness and interoperability of all participating military forces. 3rd MLG is a part of III Marine Expeditionary Force.