The Weatherman started off as part of the Revolutionary Youth Movement (RYM) within the SDS. They split from the RYM's Maoists saying they had no time to build another party. They also said that war against the United States government and capitalism should begin right away. Their founding paper called for the creation of a "white fighting force" to fight with the "Black Liberation Movement" and other "anti-colonial' movements. to achieve "the destruction of US imperialism and the achievement of a classless world: world communism." In June 1974, the Underground released their 151-page work called "Prairie Fire". "Prairie Fire" said that: "We are a guerrilla organization [...] We are communist women and men underground in the United States [...]" The Weatherman's leaders, including Ayers, wanted radical changes to sexual relations and used the slogan "Smash Monogamy".