USNS Big Horn prepares for a replenishment-at-sea in the Middle East area on July 20.US Navy photoA US Navy fuel ship suffered damage in the Middle East on Monday.The replenishment oiler USNS Big Horn was apparently involved an allision, a Navy official said.The Big Horn is a key refueling asset supporting operations in the Middle East.A US Navy fuel ship deployed to the Middle East suffered damage on Monday after apparently running into something.A Navy official told Business Insider on Tuesday that the replenishment oiler USNS Big Horn appears to have been involved in an "allision" in the Arabian Sea.An allision is a term for when a moving ship strikes a stationary object.