It’s coming around again.

WASHINGTON (AP) - The Army’s 3rd Infantry Division, which helped lead the charge to Baghdad at the outset of the war, will return next year and become the first Army division to serve three tours in Iraq.

More than 3 1/2 years into the war, the Army and Marine Corps are straining to keep a steady flow of combat and support forces to Iraq while giving the troops sufficient time between deployments for rest and retraining.

Both services are far short of their goal of providing two years between deployments; the 3rd Brigade of the 3rd Infantry, for example, will have spent barely more than 12 months at home when it returns next year. The same is true for the division’s 1st Brigade, which officials have said is scheduled to deploy again in January.

The 3rd Infantry, based at Fort Stewart, Ga., is among several units - totaling 57,000 troops - identified by the Pentagon on Friday for deployment in a fresh rotation of forces starting in January. The announcement does not presume any change in troop levels, nor is any major change expected for at least several months.