 In 1928 the Youth Pledge was declared in Batavia (today Jakarta) by Indonesian nationalist youth activists proclaiming three ideals; one motherland, one nation, and support one unifying language.The Malay nationalist Kesatuan Melayu Muda group, founded in 1938 by Ibrahim Hj Yaacob, was one of the more notable entities that embraced the concept as part of its goals.During World War II advocates of Greater Indonesia collaborated with the Japanese against the British and the Dutch.