Veterans Day, observed annually on November 11th, is a U.S. federal holiday honoring all who have served in the American Armed Forces, stemming from the 1918 WWI Armistice and evolving from "Armistice Day" to honor all veterans after World War II and the Korean War. It's a day of national gratitude, recognizing the patriotism, sacrifice, and service of veterans during wartime and peacetime, celebrated with parades, ceremonies, and moments of silence to show appreciation for their contributions.