for Armistice day
Armistice Day is on 11 November.
A two minute silence is observed at 11am on 11th day of the 11th month because this is when the Great War, or World War 1, came to end in 1918.
But now, this anniversary is used to remember all the people who've died in wars since World War 1.
This includes World War 2, the Falklands War, the Gulf War, and conflicts in Bosnia, Rwanda and Kosovo.