RawStory:

The Pentagon announced Tuesday that it will rotate 20,000 into Iraq at the end of this year but denied the troops would extend President Bush's troop "surge" through next spring, The Associated Press reported Tuesday.

CNN Pentagon correspondent Barbara Starr reported Tuesday that a "worst case scenario" would stretch military ranks as troops leave for their 15-month rotations.

"They may have to reach down into the National Guard or Army reserve" to maintain the troop levels, Starr said.