What led to the decline of the Ottoman Empire? What consequences did this have for Europe?

By the end of the 19th century, the Ottoman Empire was a weak state. Its weakening was due to the decline of Turkey’s role and influence in world trade. Its proximity to disintegration provoked a series of wars that became decisive in its existence. The Russian-Turkish war of 1877-1878 was a blow to both Russia and Turkey. It was supported by the Western European powers, which claimed the territory of the southern empire. England and Austria-Hungary sought to dismember the state in order to turn it into a colony.