BILL ROGGIO REPORTS: “The senior-most Iraqi general in charge of the security operation in Basrah has issued an ultimatum for wanted Mahdi Army leaders and fighters to surrender in the next 24 hours as the Iraqi and US military ignore Muqtada al Sadr’s threat to conduct a third uprising. US troops killed 15 Mahdi Army fighters in Baghdad yesterday and have killed 56 fighters since Sadr issued his threat last weekend.”