Seoul and Washington complete their Foal Eagle exercise on Sunday. The 2-month-long annual joint military drill involved some 300-thousand South Korean soldiers and 10-thousand U.S. troops. Though it is purely defensive in nature, tension mounts during the combined training as Pyongyang perceives it as a preparation for an invasion. The U.S. aircraft carrier Carl Vinson meanwhile, is still taking part in a different joint exercise with the Korean navy that began on Saturday… expected to end some time this week. The Nimitz-class supercarrier that took part in drills last month and had left the area, but was called back, seemingly in response to North Korean provocations.