The theme for this year is "Celebrating 100 years Armistice/Veterans Day." This theme will be highlighted by the 100th anniversary of the end of WWI. On the eleventh hour of the eleventh day of the eleventh month in 1918. WWI came to an end with armistice. It wasn't until 1938 in the aftermath of WWII and the Korean war that November 11th became a federal holiday in the United States. Armistice legally became known as Veterans day.