After the German invasion of Poland and the start of the Second World War in Europe in 1939 , he escaped to France , where he took part in the formation of the Polish Government in Exile , first serving as Minister of Internal Affairs Following the German invasion of the Soviet Union in 1941 and the subsequent reestabilishment of diplomatic relations between Poland and Soviet Union , which had been broken after Soviet participation in the invasion of Poland , Stanisław Kot became the Polish ambassador to the Soviet Union in Moscow until 1942 . Then until 1943 he served as Minister of State ( Minster Stanu ) in the Middle East , where Poland had substantial armed forces . From 1943 he was the Minister of Information ( Press and of the Propaganda Department ) and his department played an important role when relations with the Soviet Union were broken off on 26 April 1943 after the discovery of the Katyn massacre , where the Soviets murdered thousands of Polish officers prisoners of war . After Prime Minister General Władysław Sikorski 's death on 4 July 1943 , President Władysław Raczkiewicz called upon Stanisław Mikołajczyk , who had been acting as Prime Minister in General Sikorski absence , to form a Government . Kot retained his position as Minister of Information in Mikolajczyk 's cabinet
Katyn massacre
Katyn massacre
Stanisław Kot