Flag Facts May 2nd, 2017 Happy Flag Day Poland! Happy Flag Day Poland! Get your Poland flag today. Today Poland commemorates raising their flag on Siegessaule during the Battle of Berlin! 0 Comment Brent Griebling Related posts December 19, 2012 When do I need to fly my US flag at half-staff? September 30, 2019 Did you know that your flag can be cleaned? November 12, 2018 Always Buy American Made USA Flags!