The alliance of the Holy League pressed home the advantage of the defeat at Vienna and, thus, fifteen (15) years of see-sawing warfare, culminated in the epochal Treaty of Karlowitz (26 January 1699), which ended the Great Turkish War. For the first time, the Ottoman Empire surrendered control of significant European territories (many permanently), including Ottoman Hungary. The Empire had reached the end of its ability to effectively conduct an assertive, expansionist policy against its European rivals and it was to be forced from this point to adopt an essentially defensive strategy within this theatre.