it is celebrated on the same day as Armistice Day or Remembrance Day 

in other parts of the world, falling on November 11, 

the anniversary of the signing of the Armistice 

that ended World War one. 

(Major hostilities of World War I were formally ended at the 11th hour of the 11th day of the 11th month of 1918 with the German signing of the Armistice.)

Veterans Day is largely intended to thank veterans for their service, to acknowledge that their contributions to United States national security are appreciated, and to underscore the fact that all those who served - not only those who died - have sacrificed and done their duty