On 1 January 1944 it merged with "Dziennik Żołnierza" (the Soldier's Daily) which had been the house journal of the I Polish Corps published in Glasgow between 1940 and 1943.
The second was the arrival in Great Britain of over 150,000 Polish allied troops and thousands of displaced persons emerging from camps in Western Europe.
Accordingly, one third of Poland's territory had been ceded to the Soviet Union, including the two most important Polish centres of culture outside Warsaw and Kraków, that were the cities of Lwow and Wilno.
[3] As Poles in the United Kingdom became increasingly assimilated and the older generation passed on, Polish cultural structures came under severe financial pressure.
The Polish Daily was no exception as it struggled with a dwindling circulation and falling advertising revenue so that combined with poor management in 2005 it came close to ceasing publication altogether.
[1] With profound demographic changes in the readership over seven decades, and the appearance of free Polish language print publications after 2004 and offers online, the paper's strategy has had to adapt.