Anglo-Portuguese Alliance

The Anglo-Portuguese Alliance, established in 1373, is one of the oldest diplomatic alliances still in force. It originally formed as a mutual defense agreement between England (later Britain) and Portugal, aimed at strengthening their positions against common enemies, especially France and Spain. Over centuries, it has included collaborations in military, political, and economic domains, symbolizing a strong bilateral relationship. The alliance’s longevity underscores its significance in European history, fostering close diplomatic ties and cooperation between the two nations through various conflicts and alliances up to the present day.