Pragier's partner and literary collaborator in London Following the
German and
Soviet invasion of Poland in 1939, he was once again in France from where he escaped to the
United Kingdom. He participated in the formation on 30 September 1939 of the Second
Wladyslaw Sikorski government to ensure the continuity of the
Second Polish Republic's authority after the internment in the
Kingdom of Romania of President
Ignacy Mościcki and his government on 18 September 1939. From 3 November 1942 he was a member of the Polish
Polish National Council, which acted in place of an elected parliament. From 1944 to 1949, he was Minister of Information in the administrations led by
Tomasz Arciszewski and by
Tadeusz Komorowski. On the termination of President
August Zaleski's term of office, he sided with him in opposition to the
Rada Trzech (Council of Three) and remained loyal to him to the end, in spite of their fundamental political differences. From 1941 to 1947, he was a member of the Foreign Affairs Committee of the PPS. He was dismissed from the PPS in exile in 1946. From 1947 he was leader of the
Union of Polish Socialists Abroad. From 1949 to 1951, he was recalled to the Polish National Council. From 1954 to 1970, he was on the Council of the Government in exile, serving as its chairman between 1963 and 1968. He was a regular contributor to
Mieczysław Grydzewski's London-based weekly,
Wiadomości (political and literary newspaper), where, together with his new life partner, art historian
Stefania Zahorska, they edited the
Puszka (''Pandora's Box
) section given over to commentary on world affairs. His published work was centred on international affairs, in particular east–west relations, and developments in Poland. He was a political sparring partner to Juliusz Mieroszewski, who was a columnist for the Paris-based Kultura''. Pragier was unwavering in his support of the legal continuity of the
Polish government-in-exile, attributing to it an inalienable right for the continued struggle for the recovery of Poland's independence as a state. A 2019 Polish evaluation of his life dubbed him "the eternal dissident". He was a founding member of the
Polish Society of Arts and Sciences Abroad. He belonged to the
Feemasons' Lodge
Kopernik. In his late eighties, Pragier retired to the Polish hospital in Penley, near
Wrexham, where he died in 1976. He was buried in
Hampstead Cemetery, London. == Awards ==