Crete: The Battle And the Resistance by Antony Beevor
This book recounts the fall of Greece, the invasion of Crete by the Germans and the Resistance. The book is based on interviews with both the Allies and the Germans who took part. It gives insights into the invasion from the air and explains how Ultra intelligence played a key role. It also reveals how General Freyberg actually misinterpreted German coded messages to devastating effects.