The International Longshore and Warehouse Union (ILWU) is a labor union which primarily represents dock workers on the West Coast of the United States, Hawaii, and in British Columbia, Canada. The union was established in 1937 after the 1934 West Coast Waterfront Strike, a three-month-long strike that culminated in a four-day general strike in San Francisco, California, and the Bay Area. It disaffiliated from the AFL–CIO on August 30, 2013.