Argentina National Sovereignty Day is celebrated on November 20.
It commemorates the Battle of Vuelta de Obligado, when a small Argentine army stood against an Anglo-French navy that broke into the Paraná River, against the will of the Argentine Confederation.
The naval Battle of Vuelta de Obligado took place on the waters of the Paraná River on November 20, 1845, between the Argentine Confederation, under the leadership of Juan Manuel de Rosas, and a combined Anglo-French fleet.
