Yalta, city in southern Ukraine. Located on the southern coast of the Crimean Peninsula, on the Black Sea, Yalta is an important health and vacation resort. It is sheltered from north winds by the Crimean Mountains and has a mild climate. The site of the modern city was annexed by Russia in 1783. In the early 19th century the newly founded town became a favorite resort of the tsars and nobility. In February 1945, during World War II, nearby Livadiya Palace (1911) was the scene of the Yalta Conference. Population (1993) 115,548.