U.S. Marines with 2nd Battalion, 2nd Marine Regiment, currently attached to 4th Marine Regiment, 3rd Marine Division, under the Unit Deployment Program, conduct high-frequency long distance communications training on Camp Schwab, Okinawa, Japan, Jan. 1, 2020. This training helps 1st and 3rd Marine Division maintain a low electromagnetic signature that is virtually impervious to meaconing, jamming, and interference, which allows for distributed operations without detection in the operating environment. br br br -----------------------br br Credit to : U.S. Marine Corps video by Cpl.