Polish troops approach the monastery at Cassino - 1944
These Polish soldiers were of the Polish Armed Forces in the West, a Polish Army loyal to the French government in exile, and the UK, following the German attacks on Poland in the east, and the attack on France in the west. The Polish Army played a significant role in the Allied attack at Cassino during the Italian Campaign. By the end of WWII, this particular army was over 200,000 men strong.
Many of these men had hoped to return to an independent Poland following the German surrender, however, they were to be shown otherwise when they became aware that their homeland had fallen into communist hands.