"Based mainly on original German records and postwar military writings by Helmut Greiner, Burkhart H. Mueller-Hillebrand, and Hans von Greiffenberg ... The work of preparing this study in English, which consisted of translating basic German records and manuscripts, performing additional research, expanding and then rewriting the narratives ... was done chiefly by Mr. George E. Blau of the Foreign Studies Branch, Special Studies Division, Office of the Chief of Military History."

Foreword -- Part One. The Military-Political Situation in the Balkans (October 1940-March 1941) -- The Great Powers -- Germany's Satellites in the Balkans -- The Other Balkan Countries -- Part Two. The Yugoslav Campaign (Operation 25) -- Military Topography -- Hitler's Concept of the Strategic Factors -- The Plan of Attack -- The Defense Forces -- The Attack Forces -- Logistical Planning and Assembly of Second Army -- Operations -- Losses -- Lessons -- Conclusions -- Part Three. The German Campaign in Greece (Operation MARITA) -- General -- Military Topography -- Strategic Factors -- The Defense Forces -- The Attack Forces -- The Plan of Attack -- The Assembly-Logistical Problems -- Operations -- Losses -- Lessons -- Conclusions -- Part Four. The Seizure of Create (Operation MERKUR) -- Strategic Factors -- Military Topography -- The Defense Forces -- The Attack Forces -- The Plan of Attack -- The Assembly-Logistical Problems -- Operations -- Casualties and Losses -- Lessons -- Conclusions -- Part Five. The Relationship Between the Campaigns in the Balkans and the Invasion of Russia -- Influence of the Plans for Operation BARBAROSSA on the Campaigns in the Balkans -- Effect of the Balkan Campaign on Operation BARBAROSSA -- Conclusions -- Appendix 1. German Chain of Command at the Start of the Balkan Campaigns (6 April 1941) -- Appendix 2. Chronological Table of Events -- Appendix 3. Bibliographic List.