Marines with 1st Battalion, 5th Marine Regiment, 1st Marine Division, along with elements of the 7th Singaporean Infantry Brigade, clear a combat town as part of Exercise Valiant Mark 14.2 aboard Camp Pendleton, Calif., Dec. 15, 2014. Exercise Valiant Mark enhances the United States and Singaporean armed forces’ combined combat readiness through live-fire and urban terrain training as well as amphibious operations familiarization. - Marines with 1st Battalion, 5th Marine Regiment, 1st Marine Division, along with elements of the 7th Singaporean Infantry Brigade, clear a combat town as part of Exercise Valiant Mark 14.2 aboard Camp Pendleton, Calif., Dec. 15, 2014. Exercise Valiant Mark enhances the United States and Singaporean armed forces’ combined combat readiness through live-fire and urban terrain training as well as amphibious operations familiarization.