 The growth of Hiroshima as a city continued after the First World War, as the city now attracted the attention of the Catholic Church, and on May 4, 1923, and Apostolic Vicar was appointed for that city.During World War II, the Second General Army and Chūgoku Regional Army was headquartered in Hiroshima, and the Army Marine Headquarters was located at Ujina port.The city also had large depots of military supplies, and was a key center for shipping.