High Quality Content by WIKIPEDIA articles! HMS Ajax was a Leander class light cruiser which served with the British Royal Navy during World War II. She became famous for her part in the Battle of the River Plate, the Battle of Crete, the Battle of Malta and as a supply escort in the Siege of Tobruk. This ship was the eighth in the Royal Navy to bear the name. In February 1942, she was adopted by the civil community of Halifax.