British response to the involvement of United Nations Secretary-General Pérez de Cuéllar is also portrayed. Other dramatic elements include portrayal of the internal dynamics of the war cabinet and the government's representations in the House of Commons—in response to Argentine landings on the British island of South Georgia and their subsequent reclaiming by British forces, the sinking of the Argentine naval cruiser, the ARA General Belgrano, and the losses of British life when the British guided missile destroyer HMS "Sheffield" was struck by an Argentine exocet missile. The drama ends with Thatcher's declaration of the end of hostilities in the House of Commons.