Israel Ends Deadly Gaza Offensive JEBALIYA REFUGEE CAMP, Gaza Strip - Israel withdrew tanks and ground forces from populated areas in the northern Gaza Strip on Friday, wrapping up its bloodiest offensive in the area in more than four years of fighting.    Prime Minister Ariel Sharon ordered the pullback at the urging of Israeli military commanders, who argued the two-week offensive had played itself out, and after calls from the United States to wrap up the operation...