Arana–Southern Treaty

The Arana–Southern Treaty (Spanish: Tratado Arana-Southern) or Convention of Settlement, formally known as the Convention for the perfect restoration of friendly relations between the Argentine Confederation and Her Britannic Majesty, was a peace treaty signed between the United Kingdom of Great Britain and Ireland and the Argentine Confederation following the Anglo-French blockade of the Río de la Plata.

In the late 1840s, the Argentine Confederation attempted to regulate traffic on the Paraná and Uruguay rivers, which impacted upon Anglo-French trade with the landlocked Paraguay. As a result, the United Kingdom and France took military action, blockading the Río de la Plata. Although militarily successful, the victories against Argentine forces proved somewhat pyrrhic, leading to the withdraw of both countries' militaries and the signing of treaties with Argentina.