This book traces the achievements of the pilots flying the iconic Spitfire in Northwest Europe, and examines how the steady technological improvements that were made throughout the Spitfire's service life improved its capabilities in the air. Based at airfields throughout southern England, Merlin engine Spitfires provided the bulk of the air cover for the D-Day landings and it was an RCAF Spitfire which claimed the first ever ME 262 jet kill. 36 colour profiles covering a broad spectrum of nationalities, units, pilots, theatres and markings complement thorough research throughout this comprehensive account of these crucial fighter aircraft.