Flying the flag is nothing new
Poppy Day in London with brass bands and flags and speeches about all the English soldiers who had been killed and all the horrid Germans they had hopefully killed first.
Then I learned about how it was ok to kill Indians, Chinese, and Africans for the glory of the great English Empire. We had geography and history lessons and the occasional sermon to make sure we fully appreciated the glory of murder. All the parents seemed happy with it all.