Cao Dai is a Vietnamese religion, after Buddhism and Roman Catholicism it is the most popular religion in Vietnam. It was founded in the city of Tay Ninh in 1926. Caodaism is syncretic in nature, that is it borrows elements from other religions, including Buddhism, Confucianism, Christianity, Hinduism, Islam, Judaism, and Taoism. In their own words -
"Cao Dai is a universal faith with the principle that all religions have one same divine origin, which is God, or Allah,or the Tao, or the Nothingness, one same ethic based on LOVE and JUSTICE, and are just different manifestations of one same TRUTH."