Documents of World War II

Unternehmen Seelöwe (Germany, 1940; invasion of UK)

Primary Sources

OKH Operational Instruction for Sea Lion, 30 August 1940
Army Group A's Initial Forecast of Events
Weather/Sea Conditions during September 1940
Anti-Invasion Poster issued by the Birmingham Invasion Committee

Secondary Sources

R.A.F. Spitfire/Hurricane Losses (August-September 1940)
Luftwaffe Losses in the Battle of Britain (July-October 1940)

Unternehmen Tannenbaum (Germany, 1940, invasion of Switzerland)

Primary Sources

1st Presentation of Sketch of Attack, June 25, 1940
Third Updated Version of the Attack Draft

The Victory Plan (USA, 1941, early plan to defeat Nazi Germany)

NOTES: Some of the pages below are best read on a monitor with a horizontal resolution greater than 1024 pixels, due to some especially wide tables.

Victory Plan Segments (Primary Sources)

Joint Board Estimate of United States Overall Production Requirements (10.9 MB)
Appendix I: Navy Requirements (1.12 MB)
Appendix II Part I and II: Ground Forces Requirements (8.67 MB)
Appendix II Part III: Air Forces Requirements (AWPD-1) (35.8 MB)

Secondary Sources

An Unknown Future and A Doubtful Present: Writing the Victory Plan of 1941 (CMH, 1992; external link)

Operation Downfall (USA, 1945, invasion of Japan)

Primary Sources

Operation Downfall
The Japanese Plans for the Defense of Kyushu
JCS 1455 – Requirements for Land-Based and Carrier-Based Aircraft to Accomplish the Defeat of Japan – 9 August 1945
JWPC 388/1 Employment of Airborne Units in Operations Against Japan – 13 July 1945

Secondary Sources

Allied Order of Battle (Work in Progress) by Ryan Crierie
Pastel: Deception in the Invasion of Japan

Operation Round-Up (UK/USA, 1941-1943, plans for early invasion of Europe)

Primary Sources

The “Marshall Memorandum”, April 1942
“Comments on General Marshall's Memorandum”, British Chiefs of Staff, 13 April 1942

Secondary Articles

Military Operations

Planned Operations
Ultra and the Campaign against the U-Boats in World War II (SRH-142, Studies in Cryptology)

Aircraft

North American's Lightweight Mustangs
US Attack Aircraft (1918-1948)
Locations of U.S. Numbered Air Forces in 1945

Communications

German Phonetic Alphabet
American Phonetic Alphabet

Tanks

Soviet Designations for Captured German Equipment in WWII

War Production

Equipment Orders canceled by the US in World War II

Statistics of World War II

Tables of Equipment and Organization

USAAF Combat Group Composition (20 February 1945)
USAAF Basic Organization by Ryan Crierie

Military

Amphibious Operation Statistics (Ships needed, etc)
U.S. Monthly Fighter Acceptances (1940-1945)
RAF/USAAF Monthly Bomb Tonnages (1939-1945)
German Divisions by Type (1939-1945) by Ron Klages & John Mulholland
German Divisions by Theater (1939-1945)

Economic Production

American Production Costs (Man Hours and Money)
British Production Costs (Man Hours and Money)
Canadian Production Costs (Man Hours and Money)
German Production Costs (Man Hours and Money)
Soviet Production Costs (Man Hours and Money)
World War II Factory Statistics (Employees)
RAF Development Timeline for Aircraft in Peacetime
American Shipbuilding Times
British Shipbuilding Times
German Shipbuilding Times
Japanese Shipbuilding Times