? 17 - German Jet Aces of World War 2
? 18 - Hurricane Aces 1939-40
? 19 - P-38 Lightning Aces of the ETO--MTO
? 20 - German Night Fighter Aces of World War 2
? 21 - Polish Aces of World War 2
? 22 - Imperial Japanese Navy Aces 1937-45
? 23 - Finnish Aces of World War 2
? 24 - P-47 Thuderbolt Aces of the Eighth Air Force