A national flag is a special symbol that represents a country. It usually has unique colors and designs that reflect the nation's history, culture, and values. People often display their national flag during important events, such as national holidays or sports competitions, to show pride and unity. Flags can also be used to communicate messages or signify different meanings. For example, the United States flag has 13 stripes and 50 stars, each representing the original colonies and the states. National flags are important for fostering a sense of belonging and identity among the people of a nation.