A long-tailed macaque, the most common monkey in Thailand. Photo: Lyvans Boolaky/Getty Images A U.S. Navy sailor assigned to a minesweeping ship that's headed to the Strait of Hormuz was medically evacuated to his home port after he was scratched by an Asian monkey while ashore in Thailand, officials say. Why it matters: The Navy reports that the incident did not delay the USS Chief's mission and that the sailor is OK, but officials say the attack is a reminder that military missions face unexpected troubles and disruptions that are hard to war-game for. "Weird stuff happens," one military official said. "This was definitely an unknown unknown." Zoom in: The Navy dispatched the Chief and the USS Pioneer in mid-April from Southeast Asia to hunt and sweep for mines that Iran laid in and around the Strait of Hormuz . During a stopover in Phuket, Thailand, a Navy electronics technician — whom officials did not identify — encountered the monkey on shore and was scratched.…