Geoffrey Hornby
Admiral of the Fleet Sir Geoffrey Thomas Phipps Hornby GCB , was a Royal Navy officer. As a junior officer, he saw action at the capture of Acre in November 1840 during the EgyptianOttoman War. As a captain he arrived at Vancouver Island with a naval brigade and found that a unit of American troops was about to take over the San Juan Islands in a dispute known as the Pig War he used his powers of diplomacy to facilitate a peaceful handover of the islands to the United States.
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Source: Wikipedia