The Flag of Greece features nine horizontal stripes alternating between blue and white, symbolizing the waves of the Aegean Sea and the sky. In the upper left corner, there is a blue square with a white cross, representing the Greek Orthodox Church, which played a significant role in the country's history and independence. The colors blue and white are often associated with the Greek landscape, reflecting the sea and the clouds. The flag was officially adopted in 1822 during the Greek War of Independence, and it has since become a symbol of national pride and identity for the people of Greece.