The Flag of Denmark, known as the "Dannebrog," features a simple design with a white Scandinavian cross on a red background. This cross extends to the edges of the flag, symbolizing Christianity. The flag's colors are believed to represent bravery and purity. The Dannebrog is one of the oldest national flags in the world, with origins dating back to the 13th century. It is an important national symbol for Denmark and is used during various celebrations and events, reflecting the country's rich history and cultural heritage.