Percy Cox was engrossed with events in Europe. Among his other achievements while at Bushire was the establishment of the state of Kuwait as an autonomous kaza within the Ottoman Empire by the Anglo-Ottoman Convention of 1913, where he improved relations with local ruler, Mubarak, by opening negotiations with Ibn Saud. The Turks signed a treaty in London on July 29, 1913 concerning Royal Navy patrols in the Persian Gulf littoral, when Cox met then at the Port of Uqair on 15 December 1913. Cox noted their "intractability" and also warned the Foreign and Commonwealth Office about Ibn Saud; the "increased authority
Capitulations of the Ottoman Empire or more other states; a stipulation which became a most favored nation article. Around 1535 a capitulation was made by Suleiman the Magnificent regarding France. France signed its first treaty of "Capitulations" with the Mamluk Sultanate in Cairo in 1500, during the rule of Louis XII. After the Turks conquered Egypt in the Ottoman–Mamluk War (1516–1517), the Ottomans upheld the capitulations to the French and applied them to the entire empire. Capitulations signified that which was arranged under distinct headings; the Ottoman Turkish phrase was "ahid nameh", whereas a "treaty" was "mouahed". The latter did, and the former did not,