UPDATE, April 19: Marine Corps Times posted online this morning the story teased below. It’s available here. In 1994, the Pentagon explicitly forbade women from joining combat units, saying they were banned from “assignment to units below the brigade level whose primary mission is to engage in direct combat on the ground.” The decree was made even as the military eased restrictions on other fields such as combat aviation, which allowed women to become war-zone pilots for the first time. It has stood for nearly two decades, including throughout the wars in Iraq and Afghanistan. Change could be in the air,…