Chief Information Systems Technician Michael Layman demonstrated the Radio Interoperability System, a computer based technology which allows military and civil-band radios as well as cell-phones and even internet-based communications systems to interlink and communicate one with another during the Coalition Warrior Interoperability Demonstration 2008 at U.S. Northern Command. CWID is a technology demonstration hosted by U.S. Joint Forces Command and sponsored by the Joint Chiefs of Staff. The demonstration allows participants from industry to demonstrate technologies which can be used to assist not only USNORTHCOM personnel participating in defense support of civil authorities missions, but are useful to coalition partners and civil authorities. CWID involved multiple combatant commands and coalition partners in eight countries around the world.