Staff Sgt. Luis Zayas, 51st Security Forces Squadron,

Staff Sgt. Luis Zayas, 51st Security Forces Squadron, Osan Air Base, Republic of Korea, keeps a watchful eye out for opposition forces from a rooftop outside the base's perimeter April 6. The 51st Fighter Wing airmen are participating in the 2011 Korea Pacific Command Operational Readiness Inspection. An ORI is conducted to evaluate and measure the ability of units with a wartime, contingency or force sustainment mission to perform operations plans and assigned tasks. Inspectable areas include initial response, employment, mission support and ability-to-survive and operate in a chemical environment.