Anglo-Portuguese Treaty of 1373 Anglo-Portuguese Treaty of 1373 The Anglo-Portuguese Treaty of 1373 was signed on 16 June 1373 between King Edward III of England and King Ferdinand and Queen Eleanor of Portugal. It established a treaty of "perpetual friendships, unions [and] alliances" between the two seafaring nations. It is the oldest active treaty in the world. It was confirmed "with my usual flourish" by John de Banketre, Clerk. It was reinforced throughout history, including in 1386, 1643, 1654, 1660, 1661, 1703, 1815 and by a secret declaration in 1899. It was recognized in the Treaties of Arbitration in the 20th century between Britain
Treaty of Gulistan for the Persians and used this to strengthen their foreign affairs. Using their new-found diplomatic connections with the British, Persia established the Treaty of Defensive Alliance in 1812. This promised that Britain would “offer a defensive alliance against further Russian encroachments”. It essentially had terms stating that Persia would provide defense against any European army from entering India (which stationed a majority of British troops) and in return, Britain would provide military and financial aid in case of another Russian attack. The treaty did not answer vital questions such as whether the Persian army would be disarmed or be able