The color red on the U.S. flag symbolizes which of the following?

The color red on the U.S. flag symbolizes hardiness and valor. This interpretation is rooted in the flag's design and the meanings attributed to its colors since the flag's creation. Hardiness reflects the strength and resilience of the American spirit, especially evident in the sacrifices made by those who have defended the nation. Valor, on the other hand, represents bravery and courage, particularly in the face of adversity, which is a fundamental value associated with the country's history and its military forces. The use of red in the flag serves as a reminder of the bravery demonstrated by countless individuals who have fought for the nation's ideals and freedoms.