Theatre in Britain faced many challenges during and after World War 2. Bombings during the war destroyed many theatres in London and forced productions to close. ENSA was formed to provide entertainment for troops during the war. After the war, the Workers' Theatre Movement used agitprop style to promote political messages critiquing capitalism and fascism. Joan Littlewood helped establish the influential Theatre Workshop in 1945, producing anti-war plays that broke conventions. Theatre groups explored new styles and political themes to entertain and educate audiences during this turbulent period in Britain's history.