Most of the leading mass organizations in Cuba were founded shortly after the revolution. The Committees for the Defense of the Revolution were founded on 28 September 1960 to combat counterrevolutionary activities. The Federation of Cuban Women was established 23 August 1960. The National Association of Small Farmers, the leading peasants' organization, was established 17 May 1961; in 1989 it had 167,461 members, both private farmers and members of cooperatives. The Confederation of Cuban Workers, the principal trade union federation, antedates the revolution. Founded in 1939, it had a total membership of 3,060,838 workers in 1990. The Union of Young Communists of Cuba (UJC), founded in 1962, has reported over 500,000 members. The Federation of Cuban University Students (FEU), founded in 1922, consists of students from all major universities, colleges, and secondary schools.