Least Developed Countries (LDCs) are nations that face significant challenges in economic development, social progress, and human well-being. These countries often have low income levels, limited access to education and healthcare, and high rates of poverty. The United Nations designates LDCs based on criteria such as gross national income, human assets, and economic vulnerability. LDCs are typically characterized by a lack of industrialization and infrastructure, which hinders their ability to compete in the global market. Examples of LDCs include countries like Bangladesh, Ethiopia, and Haiti. International organizations, including the United Nations, work to support these nations in their development efforts.