Spc. Daryl Anthony Davis was assigned to the 144th National Guard Transportation Unit out of Marianna.
Davis was the gunner in a Humvee when the vehicle was involved in a traffic accident in Iraq.
Two others from the unit were injured.
The 20-year-old Davis had moved to Orlando this year before being transferred to the 144th as it mobilized for deployment to Iraq this past May.
The military hasn't yet released the names of the two others hurt in the accident.