The republic was heavily damaged by the war, and it required significant efforts to recover. More than 700 cities and towns and 28,000 villages were destroyed. The situation was worsened by a famine in 1946–47, which was caused by a drought and the wartime destruction of infrastructure. The death toll of this famine varies, with even the lowest estimate in the tens of thousands. In 1945, the Ukrainian SSR became one of the founding members of the United Nations organization, part of a special agreement at the Yalta Conference.