I was in Berlin when the football World Cup ('Weltmeisterschaft', Germany beat Sweden etc) was in progress, more screens in open spaces and flying not just German teams flags than anything like I experienced in the UK, in Germany or ever; a good atmosphere; including the being OK to be proud of being German.
A friend in Germany commented “What impressed me this time is that German people dared to show some kind of patriotism and that most foreigners appreciated it. I heard a very good definition of patriotism and nationalism. Patriotism means that you love your country and your people. Nationalism means that you hate other countries and their people. Lets keep sticking to the first!”