On 22 July 1944 , the KRN delegation and the Union of Polish Patriots ( ZPP ) , having deliberated in Moscow , took it upon themselves to form a new governmental structure , the Polish Committee of National Liberation ( '' Polski Komitet Wyzwolenia Narodowego '' , PKWN ) , which was officially established in the Lublin province . PKWN gave rise to communist-dominated governments , which later included some former members of the Polish-government-in-exile , led by Stanisław Mikołajczyk , and represented a half-hearted attempt by the communists to meet the Yalta Conference requirements of forming a coalition government and carrying out free elections . On 31 December of that year , the KRN transformed the PKWN into the Provisional Government of the Republic of Poland ( '' Rząd Tymczasowy Republiki Polskiej '' , RTRP ) . Both early governments were headed by the socialist Edward Osóbka-Morawski
Yalta Conference
Yalta Conference
State National Council