Army Spec. 4 John E. Hess, son of J. Richard Hess of 4182 Paxton Dr., Oakley, is one of more than 100.000 U.S. soldiers and airmen participating in the U.S. Army Re forger, or return of forces,to Germany, and theU.S. Air Force Crested Capexercises in Europe. The joint exercises are designedto demonstrate U.S.capabilities to reinforce Europe with NATO-committed ground and air units in a crisis situation. Hess is a mechanic with the 1st Armored Division in Scfcwa-bach. West Germany.