American support was also limited . After Stalin 's objections to supporting the uprising , British Prime Minister Winston Churchill telegraphed U.S. President Franklin D. Roosevelt on 25 August and proposed sending planes in defiance of Stalin , to " see what happens " . Unwilling to upset Stalin before the Yalta Conference , Roosevelt replied on 26 August : " I do not consider it advantageous to the long-range general war prospect for me to join you "
Yalta Conference
Yalta Conference
Warsaw Uprising