Historians believe that the reason for the…

Historians believe that the reason for the French and British intervention in the conflict is to restore normalcy to commerce in the region and to ensure free navigation along the Rio Parana and Rio Uruguay, thus guaranteeing access to provincial markets without Buenos Aires 's interference.

Their efforts are ineffective, however, and by 1849 the two European powers have tired of the war.

In 1850 both withdraw after signing a treaty that represents a triumph for Rosas of Argentina.