The United States flag, also known as the American flag, is a symbol of the country's national identity and unity. The flag is typically composed of thirteen horizontal stripes of red and white, with a blue field in the upper left corner containing fifty white, five-pointed stars. The stripes represent the original thirteen colonies that declared independence from Great Britain and formed the United States, while the stars represent the 50 states of the Union. The design of the flag has evolved over the years, with the number of stars and stripes being adjusted to reflect the addition of new states to the Union. The flag is considered a powerful symbol of freedom, democracy, and national pride, and is prominently displayed at government buildings, schools, and other public spaces throughout the United States. It is also commonly displayed on holidays such as Independence Day and Memorial Day, and is often flown at half-mast to honor those who have died in service to the country. The flag is also used as a symbol of national identity in sports and other activities.