US Air Force (USAF) SENIOR AIRMAN (SRA) Jeff Bethea (left) and AIRMAN First Class (A1C) Brandon Fertig (right), both with the 51st Communications Squadron, use the buddy system to check each others Mission-Oriented Protective Posture 4 (MOPP-4) gear while reacting to a simulated SCUD missile attack during Exercise BEVERLY BULLDOG 04-03, being conducted at Osan Air Base (AB), Kyonggi-do Province, Republic of Korea (KOR)