On 24 July 1967, shortly before midnight, President Lyndon B. Johnson ordered the U.S. military into Detroit to boost the Detroit Police Department, the Michigan State Police, the Wayne County Sheriff, and the Michigan Army National Guard in curtailing the city's ongoing major civil disorder. At 1:10 am, 4,700 paratroopers of the 82nd and 101st Airborne Divisions, under the command of Lieutenant General John L. Throckmorton, arrived in Detroit and began working in the streets, coordinating refuse removal, tracing persons who had disappeared in the confusion, and carrying out routine military functions, such as the establishment of mobile patrols, guard posts, and roadblocks.