Revolutionary Union (Spanish: Unión Revolucionaria, UR) was a fascistpolitical party in Peru that lasted from 1931 to 1942. It was founded in 1931 by Luis Miguel Sánchez Cerro and became the governing party that same year. It took part in elections in 1931 and 1945. In 1933 the leadership was taken over by Luis A. Flores who sought to mobilize mass support for the group's nationalism in a manner akin to fascism. He even started a Blackshirts paramilitary arm as a copy of the Italian group. The Union lost heavily in the 1942 elections and faded into obscurity.