The first ever illustrated study of the largest and most significant clash between the Royal Navy and the Italian Regia Marina. The Battle of Matapan witnessed the first use of decisive new technologies to bring about a stunning British victory over the Italian Navy. The Allies had tapped into the Ultra coded messages sent by the Axis powers, and the battle witnessed the use of radar and carrier-based air strikes to bring about a critical night action. The result was the most decisive engagement of the Mediterranean naval war.