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Zarqawi Movement Vows al-Qaida Allegiance BAGHDAD, Iraq - The most feared militant group in Iraq, the movement of terror mastermind Abu Musab al-Zarqawi, declared its allegiance to Osama bin Laden on Sunday, saying it had agreed with al-Qaida over strategy and the need for unity against "the enemies of Islam."   The declaration, which began with a Quranic verse encouraging Muslim unity, said al-Zarqawi considered bin Laden "the best leader for Islam's armies against all infidels and apostates."   It said the two had been in communication eight months ago and "viewpoints were exchanged" before the dialogue was interrupted.   "God soon blessed us with a resumption in communication, and the dignified brothers in al-Qaida understood the strategy of Tawhid and Jihad," the statement said... 