The intervention first of France (1838-42) and…

The intervention first of France (1838-42) and then of Britain and France (1843-50) transforms the Uruguayan conflict into an international war.

First, British and French naval forces temporarily blockade the port of Buenos Aires in December 1845.

Then, the British and French fleets protect Montevideo at sea.

French and Italian legionnaires (the latter led by Giuseppe Garibaldi) participate, along with the Colorados, in the defense of the city.