FORT STEWART, Ga. — A force of approximately 25,000 advisers from the U.S. Army's 3rd Adviser Division is heading to Iraq to not participate in direct ground combat of any kind, the Pentagon announced Thursday.

"Make no mistake, we are in full-on advisement against ISIL in the same way we continue to advise countries against al Qaeda and its affiliates," Pentagon spokesman Rear Adm. John Kirby said at a press conference, using an acronym for the Islamic State of Iraq and the Levant.

While noting the division was comprised mostly of combat troops from its former unit name of 3rd Infantry Division, Kirby cautioned that using this re-structured unit would not lead to advisement-creep.