Photo essay: Airmen participate in exercise Cope North Published Feb. 25, 2011 By Tech. Sgt. Mike Andriacco 1st Combat Camera Squadron ANDERSEN AIR FORCE BASE, Guam (AFNS) -- U.S. and Japanese airmen take part in exercise Cope North Feb. 21, 2011, at Andersen Air Force Base, Guam. The exercise helps joint forces increase combat readiness and interoperability, concentrating on coordination and evaluation of air tactics, techniques and procedures. View the slideshow.