Under the 1994 Pentagon policy, women were prohibited from being assigned to ground combat units below the brigade level. A brigade is roughly 3,500 troops split into several battalions of about 800 soldiers each. Historically, brigades were based farther from the front lines and they often included top command and support staff.
Still, as recent surveys and experiences have shown, it will not be an easy transition. When the Marine Corps sought women to go through its tough infantry course last year, two volunteered and both failed to complete the course. And there may not be a wide clamoring from women for the more intense, dangerous and difficult jobs.
Two lawsuits were filed last year challenging the Pentagon's ban on women serving in combat, adding pressure on officials to overturn the policy. And the military services have been studying the issue and surveying their forces to determine how it may affect performance and morale.
The Joint Chiefs have been meeting regularly on the matter and they unanimously agreed to send the recommendation to Panetta earlier this month.
Women comprise about 14 percent of the 1.4 million active military personnel. More than 280,000 women have been sent to Iraq, Afghanistan or to jobs in neighboring nations in support of the wars. Of the more than 6,600 who have been killed, 152 have been women.