The European powers had agreed to use…
November 1840 CE
This had led to the Oriental Crisis of 1840, and British and Austrian forces had attacked Acre, defeating his troops late in 1840.
Muhammad Ali's forces had faced increasing military pressure from Europe and the Ottoman Empire, had fought a losing battle against insurgents in its captured territories, and had seen the general deterioration of its military from the strain of the recent wars.
Muhammad Ali finally accepts the terms of the Convention and the firmans subsequently issued by the sultan, confirming his rule over Egypt and the Sudan, on November 27, 1840.
He withdraws from Syria and Crete and sends back the Ottoman fleet.
The London Convention and the firmans are the legal basis for Egypt's status as a privileged Ottoman province.
Later Egyptian nationalists will cite them to discredit claims for the British occupation.