The body of 20-year-old Lance Cpl. Cesar F. Machado-Olmos was scheduled to be flown Wednesday night to Dover, Del., from the war zone for funeral services and burial later this week near his home in Spanish Fork. Machado-Olmos and Lance Cpl. Michael J. Halal, 22, of Glendale, Ariz., died Monday in the restive Iraqi province of Al Anbar, the Department of Defense said in separate news releases.
   
    The Marines were killed when their Humvee rolled over while on patrol.
   
    Military officials are giving no other details, other than to say neither of the victims was driving the vehicle.
   
    The accident was being investigated, the Defense Department said.
   
    The two Marines were assigned to the 2nd Marine Division based at Camp Lejeune, N.C., said Gunnery Sgt. Marcus McAllister, a division spokesman.
   
    Machado-Olmos was assigned to the division's 2nd Combat Engineer Battalion while Halal was assigned to its 1st Battalion, 8th Marine Regiment, according to the military.
   
    Machado-Olmos, who would have turned 21 on Monday, is the second soldier from Utah who is not a U.S. citizen to die in Iraq.
   
    On Jan. 31, Cpl. Juan Carlos Cabral Bannelos, 25, Washington Terrace, and two other soldiers were killed when their unarmored Humvee struck a homemade bomb near the Iraqi city of Kirkuk.
   
    Cabral Bannelos, who is survived by a wife and two young sons, was awarded U.S. citizenship posthumously.
   
    Machado-Olmos moved from his native country of Mexico when he was a toddler, living in California, then in Provo, attending school and working as a paperboy.
   
    In Spanish Fork he volunteered as assistant librarian at the high school library.
   
    He enlisted after graduating from Spanish Fork High School and was serving his second tour in Iraq at the time of his death.
   
    Machado-Olmos is survived by his mother, Patricia Acosta, stepfather Esau Acosta, and stepsiblings Esau, 12, and Samantha, 8.
   
    "He had completed the necessary paperwork for becoming a U.S. citizen," said his mother, "and he often talked about it, but we didn't hear anything."
   
    Said Marine spokesman McAllister: "I have also reached out to the unit in Iraq to see if Lance Cpl. Machado-Olmos had begun this process."
   
    On July 3, 2002, President George W. Bush signed Executive Order 13269 to help service members become citizens.
   
    The president is authorized to expedite citizenship during periods in which the United States is engaged in armed conflict with a hostile foreign force.
   
    Service members who have served honorably for any period of time after Sept. 11, 2001, are eligible to apply for expedited U.S. citizenship, which shortens the peacetime waiting period from three years to one year of honorable service.
   
    The new law also provides quicker avenues for the non-U.S.-citizen spouses, children and parents of service members who have died in combat to obtain "immediate relative" alien status.