Armistice means cessation of hostilities or fighting. US citizens felt that the end of the war should not be the only reason to celebrate but also to commemorate the veterans who fought during the war. Armistice Day was made Veterans Day in 1954 by Congress.
In Italy, commemoration is celebrated November 4th known as Armistice of Villa Giusti. In Poland, celebrated as National Holiday called Polish Independence Day; and in the British Commonwealth of Nations called as Remembrance Day.