 The Polish government-in-exile and the Polish Secret State pleaded, to no avail, for American and British help to stop the Holocaust.The rescue efforts were aided by one of the largest resistance movements in Europe, the Polish Underground State and its military arm, the Home Army.Supported by the Government Delegation for Poland, the most notable effort dedicated to helping Jews was spearheaded by the Żegota Council, based in Warsaw, with branches in Kraków, Wilno, and Lwów.