Global health initiatives raise and disburse funds to address infectious diseases, immunization, and health system strengthening in developing countries. They support the World Health Organization's goal of ensuring high levels of health worldwide. The Millennium Development Goals established targets for reducing poverty, improving health, education, gender equality, and the environment by 2015. Global health initiatives help countries work toward these goals by providing assistance for health programs, debt relief, and technology transfer. Major initiatives focus on immunization, tobacco control, harmful alcohol use, and improving mental health services. Global health plays an important role in global security, and initiatives can help address emerging health threats worldwide.