sentences:  On 2 April 1982 the ruling Argentine military junta invaded the Falkland Islands, and on 3 April invaded South Georgia, British Crown Colonies that Britain had always ruled but which Argentina had claimed.Thatcher had not previously shown concern for the islands, and had proposed large-scale cuts to her naval forces.Thatcher listened primarily to Admiral Henry Leach, the First Sea Lord; and to Admiral Sir Terence Lewin, the Chief of the Defence Staff.