 British military assistance for the Ottomans forced Muhammad Ali Pasha to give up Syria and Palestine and limit his authority to Egypt, which remained under Ottoman overlordship (in return, his rule became hereditary).But before the crises over the Dardanelles and the Rhine could escalate into a European war, the Thiers government, whose politics of prestige had started the crisis in the first place, was brought down.A new cabinet, with Guizot as Secretary of State, sailed a more conciliatory course, and the London Straits Convention (13 July 1841) settled the matter of the Dardanelles, defusing tension in Europe.