Soldiers with 1st Battalion, 21st Infantry Regiment, 2nd Stryker Brigade Combat Team, 25th Infantry Division pass through the immigration checkpoint at Phitsanulok International Airport, Mueang District, Kingdom of Thailand, Feb. 6, 2014. They are the U.S. Army main body slated to participate in the field training exercise portion of Exercise Cobra Gold 2014, a Thai-U.S. co-sponsored exercise committed to improving regional partnership, prosperity and security in the Asia-Pacific region. U.S. Army forces attended CG 14 in support of U.S. Army Pacific.