Another 175 Maine National Guard soldiers are ready to ship out for eventual deployment to Afghanistan. The unit departs Sunday for Fort Hood, Texas, where the soldiers will receive additional training before moving on to Kabul, Afghanistan. Gov. John Baldacci and other leaders attended Saturday’s send-off in Orono for the Maine National Guard’s 1136th Transportation Company. Capt. Pete Carter, the unit’s commanding officer, says the soldiers’ primary job will be providing security for bases and for convoys in the region around Kabul. Their presence will bring the number of Maine National Guard soldiers in Afghanistan to about 300. Maine’s Bravo Company, 3-172nd Mountain Infantry Battalion, is already in Afghanistan.