sentences:  A Polish-Soviet military agreement was signed on 14 August 1941; it attempted to specify the political and operational conditions for the functioning of the Polish army on Soviet soil.Stalin agreed that this force would be subordinate to the Polish government-in-exile, while operationally being a part of the Soviet-German Eastern Front.On 4 August 1941 the Polish prime minister and commander-in-chief, General Władysław Sikorski, nominated General Władysław Anders, just released from the Lubyanka prison in Moscow, as commander of the army.