Throughout its campaigning, the League kept an active relationship with trade unions and local organisations throughout Britain and Greece, and also with the Parliamentary Labour Party.
The persecution of resistance fighters in post-war Greece continued during Clement Attlee's government, and in October 1945 Labour members and other left-wing Britons league.
The League was founded in October 1945 in a public meeting held in Garrick Theatre, London, to commemorate Greece's entering the Second World War against the axis powers.
On the 26 April, an LDG delegation consisting of Diana Pym along with the Labour MPs Norman Dodds, Stanley Tiffany and Leslie Solley arrived in Greece.
[4] In 1977, by a decision of the Executive Committee, the archives of the League for Democracy in Greece were donated to the Byzantine and Modern Greek Studies at King's College London.