Pentagon identifies 7 Marines killed in Iraq WASHINGTON, March 25 (Reuters) - The Defense Department on Tuesday identified seven U.S. Marines killed in a firefight near the southern city of Nassiriya on Sunday, raising to 18 the total number of confirmed U.S. casualties in the Iraq war. The Pentagon named those killed as Sgt. Michael Blitz, 31, of Ventura, California; Lance Cpl. David Fribley, 26, of Lee, Florida; Cpl. Jose Garibay, 21, of Orange, California; Cpl. Jorge Gonzalez, 20, of Los Angeles; Staff Sgt. Phillip Jordan, 42, of Brazoria, Texas; 2nd Lt. Frederick Pokorney Jr., 31, of Nye, Nevada; and...