World Vision International is an interdenominational Christian humanitarian aid, development and advocacy organisation. Founded in 1950 by Robert Pierce and Kyung-Chik Han to care for children in Korea, it now works in more than 100 countries on child protection, health, education, water and sanitation, livelihoods and emergency response. Total revenue including grants and gifts-in-kind is roughly US$3.1 billion a year. World Vision International keeps its administrative centre in Monrovia, California and an executive office in London.