Remembrance Sunday is an annual observance in the United Kingdom that was established to commemorate servicemen and women in WWI, WWII and later conflicts.
It is held on the Sunday nearest to Armistice Day, i.e. on the second Sunday in November.
Armistice Day is the anniversary of the end of World War I.
From 1919 to 1945, it was the only day of commemoration in the UK.
After World War II, Remembrance Sunday replaced Armistice Day, but since 1995 it has become common to hold remembrance ceremonies on both days.
Remembrance Day in the UK is marked by remembrance ceremonies attended by government officials, ex-servicemen and servicewomen, members of armed forces units, military cadets, and members of youth organizations.