Rubuta ci gaba don wannan sakin layi - Adadin 'yan Poland a Biritaniya ya karu a lokacin Yaƙin Duniya na Biyu. Yawancin mutanen Poland da suka zo Burtaniya a wancan lokacin sun zo ne a matsayin wani ɓangare na rukunin sojoji da aka sake kafawa a waje da Poland bayan mamayewar Jamusawa da Soviet na Poland
a watan Satumbar 1939, wanda ya nuna farkon yakin duniya na biyu. A ranar 3 ga Satumba, 1939, Biritaniya da Faransa, waɗanda suke da haɗin kai da Poland, suka yi yaƙi da Jamus. Poland ta tura gwamnatinta zuwa ƙasashen waje, da farko zuwa Faransa kuma, bayan faɗuwarta a watan Mayu 1940, zuwa London. Yaren mutanen Poland sun ba da gudummawa sosai ga ƙoƙarin yaƙin Allied; Rukunin sojan ruwa na Poland sune sojojin Poland na farko da suka haɗu da Royal Navy a ƙarƙashin "Tsarin Beijing". Matukan jirgi na Poland sun taka rawar gani a Yaƙin Burtaniya kuma sojojin Poland da aka kafa a Burtaniya daga baya sun shiga cikin mamayewar Allied na Faransa da Nazi ke mamayewa. Mafi yawan tsoffin sojan Poland sun makale a Burtaniya bayan Tarayyar Soviet ta sanya ikon kwaminisanci a Poland bayan yakin. Wannan ya shafi musamman sojojin Poland daga yankuna na gabas, waɗanda ba su kasance cikin Poland ba sakamakon canje-canjen kan iyaka saboda Yarjejeniyar Potsdam. Gwamnatin Poland da ke gudun hijira, duk da cewa an hana yawancin kasashen duniya bayan 1945, ya kasance a mukaminsa a London har sai da aka rushe shi a 1991, bayan da shugaban da aka zaba a dimokuradiyya ya karbi mukaminsa a Warsaw.