A pioneer movement is an organization for children operated by a communist party. Typically children enter into the organization in elementary school and continue until adolescence. The adolescents then typically join the Young Communist League. Prior to the 1990s there was a wide cooperation between pioneer and similar movements of about 30 countries, coordinated by the international organization, International Committee of Children's and Adolescents' Movements (, CIMEA), founded in 1958, with headquarters in Budapest.