The USCGC Maple (WLB 207) crew participate in a search and rescue and pollution response exercise. (U.S. Coast Guard photo by Petty Officer 3rd Class Jose Hernandez) PORTSMOUTH, Va. — The U.S. Coast Guard participated in the Danish Joint Arctic Command’s annual joint large-scale Exercise Argus in Southern Greenland, June 21- 25. Deployed forces demonstrated U.S. Coast Guard capabilities to...