Evacuation Day is a public holidays in Tunisia.
It's observed on October 15 every year on the anniversary of the retreat of the last French troops from Bizerte in 1963.
Tunisia became a French protectorate in 1881 and gained its independence only in 1956.
The French troops were withdrawn from the territory of Tunisia, but the city of Bezerte had a strategic location on the Mediterranean Sea and France deployed its troops there.
In 1961 Tunisian forces blockaded the city and demanded the withdrawal of French troops, but France brought reinforcement and started military actions against Tunisia.
France took Bizerte and the town of Menzel Bourguiba.
French military actions were condemned by international organizations and France was pressed by the UN security council to abandon Bizerte.
The last French troops were withdrawn from the city on October 15, 1963 and the anniversary of this event is now known in Tunisia as Evacuation Day.