US Air Force (USAF) STAFF Sergeant (SSGT) Shane Odermatt, Videographer, 1ST Combat Camera Squadron, documents Canadian Forces Army MASTER Corporal J. Tremblay, Local Area Network (LAN) Communications and Information Technician as he participates in a High Frequency (HF) Radio transmission during Exercise COMBINED ENDEAVOR 2000. The Exercise is a Partnership for Peace (PfP) exercise hosted by Germany and is the largest information and communications systems exercise in the world which focuses primarily on Command, Control, Communications, and Computers (C4) interoperability testing and documentation