What does the colors of the United States of American mean?

red stood for courage, blue stood for justice and freedom, and white represented peace.

However, George W. had different thoughts. he said the white stars were army in the sky, aka the air force, blue stood for watch of the sea, the navy, and red meant watch over the ground, or the army. the whole flag in g.w.'s mind, meant the phrase, 'big brother's watching' with 'big brother being the government.