Remembrance Sunday is held in the United Kingdom as a day to commemorate the contribution of British and Commonwealth military and civilian servicemen and women in the two World Wars and later conflicts. It is held on the second Sunday in November. Remembrance Sunday, within the Church of England, falls in the liturgical period of Allsaintstide.

Armistice Day, later known as Remembrance Day in the Commonwealth and Veterans Day in the United States, is commemorated every year on 11 November to mark the armistice signed between the Allies of World War I and Germany at Compiègne, France, at 5:45 am for the cessation of hostilities on the Western Front of World War I, which took effect at 11:00 am—the "eleventh hour of the eleventh day of the eleventh month" of 1918 although, according to Thomas R. Gowenlock, an intelligence officer with the U.S. First Division, shelling from both sides continued for the rest of the day, ending only at nightfall. The armistice initially expired after a period of 36 days and had to be extended several times. A formal peace agreement was reached only when the Treaty of Versailles was signed the following year.