Qasim styled himself the "sole leader" of Iraq and rejected any association with Nasser, whereas Arif publicly advocated that Iraq join the United Arab Republic (UAR)—a short-lived union of Egypt and Syria. On September 30, Qasim attempted to neutralize Arif by sending him to West Germany as an ambassador; yet on October 2, Dulles predicted: "In all probability, we have not heard the last of [him]." Egyptian agents in Bonn worked with Arif on a conspiracy to depose Qasim, but Arif was arrested not long after he returned to Baghdad on November 4.