Fireballs ignited by 11th Marine Expeditionary Unit combat engineers burst upward over a military range here Jan. 27 during a bilateral training exercise conducted by the unit’s ground combat element, Battalion Landing Team 2/4, and Kuwaiti military. - Fireballs ignited by 11th Marine Expeditionary Unit combat engineers burst upward over a military range here Jan. 27 during a bilateral training exercise conducted by the unit’s ground combat element, Battalion Landing Team 2/4, and Kuwaiti military.