Second Lieutenant Aleksei Latt (left) and Sergeant Nikolai Bogatsev (right), from the Estonia Armed Services, roll up a cable as part of the tear-down for Exercise COMBINED ENDEAVOR 2001 in Lager Aulenbach, Germany. Combined Endeavor is the largest communications and information systems exercise in the world, is drawing to a close. The exercise, sponsored by US European Command and hosted by Germany in the spirit of "Partnership for Peace," is held annually to test and document the interoperability of dozens of nations and NATO