 In 1775, the Habsburg Monarchy annexed ca 11% of the territory of Moldavia, which became known as Bukovina.By the Treaty of Bucharest following the Russo-Turkish War (1806–1812), Russia had annexed further 50% of its territory, which became known as Bessarabia.With the notable exception of Transnistria, the territory of today's Republic of Moldova covers most of the historical region of Bessarabia.