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190302-N-ZI635-019 ROTA, Spain (March 2, 2019) Seabees assigned to Naval Mobile Construction Battalion (NMCB) 133 conduct training with a 3D printer at Naval Station Rota, Spain. NMCB-133 is forward deployed to execute construction, humanitarian and foreign assistance, and theater security cooperation in the U.S. 6th Fleet area of operations. (U.S. Navy photo by Mass Communication Specialist 2nd Class George M. Bell/Released)