During the mass migration of British African-Caribbean people, known as the Windrush Generation, the CPGB dedicated much of its political activity to opposing British racial segregation, inspiring many leading black rights activists to join the CPGB, including Trevor Carter, Charlie Hutchison, Dorothy Kuya, Billy Strachan, Peter Blackman, Henry Gunter, and Len Johnson. The most famous of these black CPGB activists, Claudia Jones, created Britain's first major black newspaper and founded London's Notting Hill Carnival, the world's second-largest annual carnival. In 1956 the party experienced a large loss of membership due to its support of Soviet military intervention in Hungary, taking the party almost a decade to recover its lost membership. During the 1960s, CPGB activists raised money and equipment to donate to Vietnamese communists fighting in the Vietnam War. In 1984, the leader of the CPGB's youth wing Mark Ashton founded Lesbians and Gays Support the Miners, recognised as a turning point for the recognition of LGBT people in the UK.