Peter G. Tsouras is a military historian and author.
Peter Tsouras, a Greek-American, served in the United States Army and retired with the rank of Lieutenant Colonel. He served in armor, military intelligence, and civil affairs assignments.
He currently works as a senior analyst with the Battelle Corporation and resides in Alexandria, Virginia.
- Alexander: Invincible King of Macedonia
- Britannia's Fist: From Civil War to World War: An Alternate History
- Changing Orders: The Evolution of the World's Armies, 1945 to the Present
- Disaster at D-Day: The Germans Defeat the Allies, June 1944
- Gettysburg: An Alternate History
- Great Patriotic War: The Illustrated History
- Montezuma: Warlord of the Aztecs ISBN 1-57488-822-6
- United States Army: A Dictionary
- Warlords of the Ancient Americas: Central America
- Anvil of War: German Generalship on the Eastern Front
- Battle Of The Bulge: Hitler's Alternate Scenarios
- Civil War Quotations: In the Words of the Commanders
- Cold War Hot: Alternative Decisions of the Cold War
- Dixie Victorious: An Alternate History of the Civil War
- Fighting in Hell: the German Ordeal on the Eastern Front
- The Greenhill Dictionary of Military Quotations
- Operation Just Cause: U.S. Intervention in Panama (co-edited with Bruce W. Watson)
- Panzers on the Eastern Front: General Erhard Raus and His Panzer Divisions in Russia, 1941-1945
- Rising Sun Victorious: The Alternative History of How the Japanese Won the Pacific War
- Third Reich Victorious: Alternate Decisions of World War II
- Warrior's Words: A Quotation Book - From Sesostris III to Schwarzkopf, 1871 B.C.-1991 A.D.
- Hitler Triumphant: Alternate Decisions of World War II