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Graduate and doctoral engineering students from Brazil pose for a picture at the 612th Air and Space Operations Center with Col. Paulo Vasconcellos, Brazilian Air Force liaison officer to Headquarters Twelfth Air Force (Air Forces Southern), during a tour of Davis-Monthan Air Force Base, July 24. The students were in Tucson, Ariz., visiting the nearby Raytheon Company as part of Brazil’s Science Without Borders program and requested the opportunity to visit D-M. The 612th AOC provides command and control of U.S. air and space assets 24-hours-a-day to support joint and coalition efforts in the Caribbean, Central America and South America. (U.S. Air Force photo/Capt. Jonathan Simmons)
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