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A US Air Force Lt. Col. from the 99th Expeditionary Reconnaissance Squadron waits in his vehicle before an EQ-4 Global Hawk’s first launch from an undisclosed location in Southwest Asia, Nov. 29, 2010. The EQ-4 and other Global Hawk platforms utilize a chase vehicle to ensure the aircraft takes off successfully. (US Air Force Photo/Staff Sgt. Eric Harris/RELEASED)

[Image courtesy of the US Air Force 380th Air Expeditionary Wing Website.]