Photo Information Col. James Wellons gives the opening remarks during the Weapons and Tactics Instructor Course 2-17 at Marine Corps Air Station Yuma, Ariz., April 30, 2017. WTI is a seven week period of instruction that trains Marines and Sailors to become certified Weapons and Tactics Instructors. More than 200 Marines and Sailors graduated from this class of WTI. Wellons is the commanding officer of Marine Aviation Weapons and Tactics Squadron 1, Marine Air Ground Task Force Training Command. (U.S. Marine Corps photo by Lance Cpl. Cody Lemons/Released) Photo by Lance Cpl. Cody Lemons Download Details Share 2nd MAW Marines graduate from WTI 2-17 4 May 2017 | Lance Cpl. Cody Lemons Marine Corps Air Station Cherry Point PRINT SHARE Marine Corps Air Station Yuma -- More Media 2nd MAW Marines graduate from WTI 2-17 Photo by Lance Cpl. Cody Lemons Download Details Share 2nd MAW Marines graduate from WTI 2-17 Photo by Lance Cpl. Cody Lemons Download Details Share 2nd MAW Marines graduate from WTI 2-17 Photo by Lance Cpl. Cody Lemons Download Details Share Tags USMC , United States Marine Corps , U.S. Marines , service members , DOD , Department of Defense , Yuma , Arizona , Weapons and Tactics Instructors Course , WTI 2-17 , graduation , Marine Corps Air Station Yuma , students , instructors