Ukraine is a developing country ranking 74th in the Human Development Index. It is the poorest country in Europe alongside Moldova, suffering from a very high poverty rate as well as severe corruption. However, because of its extensive fertile farmlands, Ukraine is one of the largest grain exporters in the world. It also maintains the third-largest military in Europe after Russia and France. Ukraine is a unitary republic under a semi-presidential system with separate powers: legislative, executive, and judicial branches. The country is a member of the United Nations, the Council of Europe, the OSCE, the GUAM organization, the Lublin Triangle and is one of the founding states of the CIS, even though it never became a member of the organization.