U.S Marine Combat Engineers use Mark 2 Bridge Erection Boats. U.S Marine Combat Engineers and Republic of Korea Marines use Mark 2 Bridge Erection Boats to tug an Improved Ribbon Bridge carrying a Korean T-54 Medium Tank across the Ganghwa Inlet, near Camp Gempo, Republic of Korea, on Oct. 15, 2004. The U.S. and Korean Marines are participating in Korean Incremental Training Program 05-1, a three- pronged exercise focused on engineer, medical, and interoperability training between the host nation and different services. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 224513-M-DQT74-671.jpg Photo Gallery