18 july 1944 Polish Army liberated Ancona in Italy. Earlier it was Nazi German occupation. Polish Army tank M4A4 Sherman V. Tank made in USA. Poles destroying Nazi German banner.

Polish Army destroying Nazi Germany flag.

Warsaw Uprising 1944, Poland. Poles were fighting against  Germans in 1939, 1943 (polish Jews), 1944 (Poles Gentiles) and 1945.
Polish flag was on the top of Berlin Victory Column (Siegessaule 1945), USSR flag was on the top of Brandenburg Gate 1945. 
more (photos, movies,songs):  
www.1944.pl , www.warsawuprising.com   
In photo: Polish Home Army (Poles were rescuing Jews and fighting against Germans.