San Juan Island was jointly occupied by Great Britain and the U.S. startin in 1859 until 1872 until water boundary between the two nations was settled. Garrison Bay was chosen by the English. During this time there was a confrontation called the Pig War, triggered by the shooting of a pig that elevated tension in the boundary dispute. There were no casualties other than the pig although the English had 5 warships and almost 2,200 soldiers in the area. My wife Kelly’s great great grandfather served here at the time.