MIXING IT UP U.S. Navy Petty Officer 1st Class Diego Gamboa, left, a Ghanaian soldier, and U.S. Navy Petty Officer 3rd Class Victorio Castillo mix cement to build a new school library in Mafi-Anfoe, Guam, April 9, 2008. Gamboa and Castillo are assigned to Maritime Expeditionary Security Squadron 32. SHARE: Download: Full Size (0.1 MB) Credit: VIRIN: 274710-K-BUA32-981.jpg Photo Gallery