And if appears that Iraqi division didin't officially surrender, according to Washington Post.

"U.S. and British ground commanders hoped their push into Basra would be easier after two Iraqi officers, thought to be the commander and deputy commander of Iraq's 51st Mechanized Infantry Division, surrendered at the dusty border town of Safwan on Friday. But today, U.S. officers said they believe the two men are merely battalion or brigade officers whose decision to give up did not mean the entire division was laying down its arms."