Iberian Pact

The Portuguese-Spanish Treaty of Friendship and Non-Aggression (Tratado de Amistad y No Agressión entre Portugal y España, Tratado de Amizade e Não Agressão entre Portugal e Espanha), more commonly known as the Iberian Pact (Portuguese, Spanish: Pacto Ibérico), was an international treaty signed on 17 March 1939 between Portugal's right-wing dictatorship of the Estado Novo, under António de Oliveira Salazar, and Spain's nationalist right-wing dictatorship of Francisco Franco, who had just won the Spanish Civil War (1936–1939), in which he enjoyed Portuguese non-official collaboration.

The pact committed the two countries to defend the Iberian Peninsula against any power that attacked either country and helped to ensure Iberian neutrality during World War II.

An additional protocol to the pact was signed on 29 July 1940.