The Marine Corps made national headlines in fall 2010 when it sent tanks to northern Helmand province to bolster firepower there. It was a first for the U.S. in the war, which was nine years old at the time. Nearly three years later, the tanks are coming home. Delta Company, 2nd Tank Battalion, out of Camp Lejeune, N.C., will redeploy to the U.S. soon, and will not be replaced by a similar unit, said 1st Lt. Philip Kulczewski, a Marine spokesman in Afghanistan. It’s one of the most tangible indications recently that that the U.S. drawdown in forces in Afghanistan…