The United States expedition to Korea, known in Korea as the Shinmiyangyo (Korean: 신미양요; Hanja: 辛未洋擾; lit. "Western Disturbance in the Shinmi Year (1871)") or simply the Korean Expedition, was the first American military action in Korea and took place predominantly on and around Ganghwa Island in 1871
Number on you can tell by what site you are on if you are on Wikipedia you cant trust it. number two if it has .org or.gov you can trust it couse it give accurate information number three if you know what some of the facts are you can tell if they are true or not on the website.