German Community Day is observed in Belgium on November 15 each year, specifically for the German-speaking community located in the Wallonia region. This public holiday commemorates the anniversary of the adoption of the community's coat of arms and flag, which took place on November 15, 1990. The German-speaking Community, comprising nine municipalities over an area of 853 square kilometers, was established following the annexation of its eastern territories by Belgium in 1920 after World War I. On this day, the flag of the Community is hoisted on official buildings, marking the celebration that distinguishes it from the Flemish and French communities, which have their own respective observances.