The air forces of Italy (Regia Aeronautica and the ANR), Vichy France, Finland, Hungary, Croatia, Slovakia, Romania, and Bulgaria are covered in detail. The Spanish, Estonian, Latvian and Russian formations that flew with the Luftwaffe on the Eastern Front are described. There are sections on volunteers from Denmark, Norway, Belgium, and the Netherlands. A good bibliography and plenty of notes make it easy to track down other sources. Not covered are the air forces of Iraq, Japan, or Japanese allies and puppet states. With the low price and excellent readability, this is a great buy, packed with information. There are appendices on aces, aircraft production, etc. ( )