It was based on cavalry units of the former Imperial Russian Army, in which ethnic Poles were in the majority, such as the 1st Guards Cuirassier Regiment.
Two days later, its two squadrons set off to fight in eastern Austrian Galicia, capturing the towns of Boryslaw and Bolechow.
In early September 1939, Colonel Andrzej Kuczek, who commanded the regiment, ordered the flag to be transported back to the barracks in Bialokrynica, Volhynia.
On the morning of September 17, 1939, when news of Soviet Invasion of Poland reached Bialokrynica, the flag was taken southwards, but it did not reach Romania, as on September 19 in the morning near Zloczow, it was burned by Rotmistrz Jan Chojnacki, who did not want the flag to fall into Soviet hands.
Following the Sikorski–Mayski agreement, the so-called Anders' Army was created in the Soviet Union, out of Poles who had forcibly been resettled in Siberia and other provinces of the country.
In January 1942, the squadron was transported to Tashkent, and in October of that year, by which time it was in Iran, it was renamed the 12th Armoured Cavalry Regiment.
In January 1944, it was conveyed to Italy, and later fought in the Battle of Monte Cassino, during which the Podolian Uhlans were the first to capture the strategic hill.
A second flag, founded by airmen of the Polish Airforce in the West, was handed to General Anders, on November 11, 1945, in Italy.
The flag, which featured Our Lady of the Gate of Dawn, is now kept at the Polish Institute and General Sikorski Museum in London.
The regimental badge, accepted by Polish military authorities on February 28, 1922, featured the yellow Podolian sun and the Maltese cross.