The Great Turkish War (1683-1699) was a conflict between the Ottoman Empire and a coalition of European powers, including the Habsburg Monarchy, the Polish-Lithuanian Commonwealth, and the Venetian Republic. The war began with the unsuccessful Siege of Vienna in 1683, where the Ottomans aimed to expand their territory into Central Europe. The war concluded with the Treaty of Karlowitz in 1699, marking a significant shift in power. The Ottomans lost substantial territories in Europe, including parts of modern-day Hungary, Slovenia, and Croatia, leading to a decline in their influence in the region.