In February 2004, the 101st was replaced in Mosul by a portion of I Corps headquarters, but operational forces consisted solely of a unit roughly one quarter its size—a Stryker brigade. The following summer, the governor of Nineveh Province was assassinated, and most of the Sunni Arab Provincial Council members walked out in the ensuing selection of the new governor, leaving Kurdish members in charge of a predominantly Sunni Arab province. Later that year, the local police commander defected to the Kurdish Minister of Interior in Irbil after repeated assassination attempts against him, attacks on his house, and the kidnapping of his sister. The largely Sunni Arab police collapsed under insurgent attacks launched at the same time Coalition Forces attacked Fallujah in November 2004.