In 1970, President Nixon scheduled an appearance at the national American Legion convention in Portland, Oregon, in order to promote the continuation of the Vietnam War. A coalition of Portland-based anti-Vietnam War groups, called the People's Army Jamboree, planned a series of demonstrations and other anti-war activities, to be held at the same time as the convention. Law enforcement at all levels, expecting massive numbers of protesters on both sides, were concerned about large-scale violence—an FBI report estimated a potential crowd of 25,000 Legionnaires and 50,000 anti-war protestors, and suggested that the result could be worse than the protests at the 1968 Democratic National Convention in Chicago.