Keywords: US Navy 071217-N-0606B-003 Chief of Naval Operations Adm. Gary Roughhead administers the oath of office to 35 ROTC graduates at Purdue University in West Lafayette during a Tri-Service Commissioning Ceremony at the university.jpg en WEST LAFAYETTE Ind Dec 17 2007 Chief of Naval Operations Adm Gary Roughead administers the oath of office to 35 ROTC graduates at Purdue University in West Lafayette during a Tri-Service Commissioning Ceremony at the university The Navy's top admiral commissioned 16 Navy Ensigns 16 Air Force and four Army 2nd Lieutenants There are 470 students enrolled in ROTC at Purude; 168 are in the Navy ROTC Program U S Navy Photo by Chief Mass Communication Specialist Rhonda Burke Released 2007-12-17 071217-N-0606B-003 Navy http //www navy mil/view_image asp id 54016 U S Navy Photo by Chief Mass Communication Specialist Rhonda Burke PD-USGov-Military-Navy Purdue University Gary Roughead in 2007 Reserve Officers' Training Corps ROTC Purdue Memorial Union Military ceremonies Oath of office |