Lance Cpl. Paul J. Yi, chemical, biological, radiological and nuclear defense specialist with 4th Light Armored Reconnaissance Battalion, 4th Marine Division, translates for U.S. and Korean Marines before a beach assault during Peninsula Express 15 on Dogu beach in Pohang, Republic of Korea, July 3, 2015. Yi attached to Company G, 2nd Battalion, 24th Marine Regiment, as their interpreter for the training cycle. Peninsula Express is this year’s eighth iteration of the Korean-Marine Exchange Program, a series of exercises between the U.S. and Republic of Korea Marine Corps designed to build interoperability and tactical familiarity between partner the nations. (U.S. Marine Corps photo by Cpl. Ian Leones)