As a result of Turkey's disloyalty, the advanced 4th Mechanized Infantry Division had to sail around the Arabian peninsula to Kuwait to join the fight.

CENTERFORSECURITYPOLICY: Turkey's cozy business with Iran

The 5th Corps' combat strength was estimated at 30, 000 troops when the U.S.-led invasion of Iraq began March 20, but it is unknown what toll heavy airstrikes and desertions have taken on its three infantry divisions and one mechanized infantry division, U.S. military sources told CNN.

CNN: Coalition makes key advances in northern Iraq