Later in 1595 O'Neill and O'Donnell wrote to King Philip II of Spain for help, and offered to be his vassals. He also proposed that his cousin Archduke Albert be made Prince of Ireland, but nothing came of this. A truce in late 1595 was followed by the submission of Hugh Maguire in April 1596, and Tyrone promised to explain his conduct before the Queen in London, but the arrival of three Spanish envoys from Philip II in 1596 promising men and supplies ended any chances of peace. An unsuccessful armada sailed in 1596; the war in Ireland became a part of the wider Anglo-Spanish War.