 "Pennsylvanian" sailed in this service on the west side of North America.After the United States occupation of Veracruz on 21 April 1914 (which found six American-Hawaiian ships in Mexican ports), the Huerta-led Mexican government closed the Tehuantepec National Railway to American shipping.This loss of access, coupled with the fact that the Panama Canal was not yet open, caused American-Hawaii to return in late April to its historic route of sailing around South America via the Straits of Magellan.