The video _ as grisly as any the al-Qaida in Iraq leader issued _ was clearly designed to quash hopes that the Sunni-dominated insurgency might change tactics by ending attacks on Shiite civilians and institutions, especially the police.
Fellow Sunni insurgent groups sent condolences for al-Zarqawi in Internet messages Saturday and warned Sunnis not to cooperate with the Iraqi government, an apparent call for unity three days after U.S. forces killed the terror leader in a targeted airstrike.
The condolence statements came from the al-Qaida-linked Ansar al-Sunnah _ the group that posted the beheading video on a militant Web site _ and the head of the Mujahedeen Shura Council, an umbrella organization of five insurgent groups, including al-Qaida in Iraq, that al-Zarqawi helped found last year.
"Iraq is the front defense line for Islam and Muslims, so don't fail to follow the path of the mujahedeen (holy warriors), the caravan of martyrs and the faithful," said Abdullah bin Rashid al-Baghdadi, the Shura Council's head.
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