Final answer:
Veterans Day, which honors veterans of all wars, became a federal holiday on June 1, 1954.
Step-by-step explanation:
The federal holiday that honors veterans of all wars is Veterans Day. It was first established as Armistice Day on November 11, 1919, one year after the end of World War I. In 1954, the name was changed to Veterans Day to honor all veterans. Veterans Day became a federal holiday on June 1, 1954.