Amistice Day, also known as Veterans Day, is commemorated every year on November 11 to mark the armistice signed between the Allies of World War 1 and German at Compiègne, France, at 5:45am for the cessation of hostilities on the Western Front of World War 1, which took effect at eleven in the morning – the “eleventh hour of the eleventh day of the eleventh month. (Wikipedia)
The feast of St Martin of Tours is celebrated on this day also, and sometimes referred to as Martinmas or St Martin’s Day. The fourth century Roman soldier, who later became a bishop in Gaul, features in Botticelli’s famous Primavera painting. Details at this link.