Simulated Security Marine Corps Cpl. Joshua Williamson provides simulated security during Iron Fist, a bilateral amphibious assault exercise with Japanese soldiers, in Tokunoshima, Japan, March 3, 2023. The exercise is designed to increase interoperability and strengthen the relationships between U.S. and Japanese forces. SHARE IMAGE: Download Image: Full Size (2.79 MB) Tags: Marine Corps, exercises, Iron Fist Photo By: Marine Corps Cpl. Vincent Pham VIRIN: 230303-M-VU652-1286M.JPG Photo Gallery