With a UH-60 Black Hawk (Blackhawk) helicopter in the background, SPEC. 4 Timothy W. Brown of the 1ST Bn., 504th Parachute Infantry Regt., 82nd Airborne Div., mans his M-249 squad automatic weapon after jumping into Drop Zone Ferruzi at the beginning of exercise Solid Shield '89. The exercise is being conducted on the East Coast of the United States by approximately 30,000 military personnel from all services