International organizations like the United Nations influence national policies through collaborative efforts aimed at addressing global challenges, fostering peace, and promoting human rights. By establishing international norms and standards, these organizations provide frameworks for accountability and cooperation among member states. Nations often align their policies with UN resolutions to maintain diplomatic relations and fulfill international obligations. Additionally, organizations like the UN offer resources, expertise, and platforms for dialogue, assisting countries in implementing policy changes that reflect global priorities, thereby enhancing their development and diplomatic relations.