During the Second World War (1941–45), the college was temporarily closed as the Philippines fought a guerrilla war against the Japanese. The war led to the destruction of all the buildings, except for Urdaneta Hall, which at present houses the university theatre and the College of Pharmacy and Medical Technology. With almost the entire college in ruins, some friars advocated closing the school altogether while others pushed for its immediate rehabilitation. American Augustinians came on loan after the War to help the Order run the University of San Agustin for a couple of years while young friars from Spain of the Philippine Province were studying their master's degrees and learning English in the United States or Australia.