- Other Axis & Allied Armored Fighting Vehicles
- Other Moons
- Other than War: The American Military Experience and Operations in the Post-Cold War Decade, 19th an...
- Otto Kretschmer
- Otto Skorzeny, el nazi más peligroso en la España de Franco
- Ottoman Army Effectiveness in World War I
- Ottoman Navy Warships 1914–18
- Our Army At The Front
- Our Army at the Front
- Our Campaign Around Gettysburg
- Our Father's Generation
- Our Father's War
- Our Fathers at Gettysburg: A Step by Step Description of the Greatest Battle of the American Civil W...
- Our Fathers' War
- Our Finest Hour
- Our Friend the Enemy
- Our Great Hearted Men
- Our Jungle Road to Tokyo [Illustrated Edition]
- Our Land at War
- Our Longest War
- Our Loss Was Heavy: Brigadier General Josiah Harmar's Kekionga Campaign of 1790 – Frontier Indian Ba...
- Our Man in Charleston
- Our Man in Malaya
- Our Man in Yugoslavia
- Our Mission Revealed
- Our Name Wasn't Written - A Malta Memoir (1936-1943)
- Our National Defense: The Patriotism of Peace
- Our Navy at war
- Our Navy in the War
- Our People
- Our Pilots in the Air
- Our Pilots in the Air: World War 1.
- Our Redcoats and Bluejackets: war pictures on land and sea: forming a continuous narrative of the Na...
- Our Service, Our Stories - Indiana Veterans Recall Their World War II Experiences
- Our Soldier Boy
- Our Soldiers
- Our Sons Our Heroes: Memories Shared by America’s Gold Star Mothers from the Vietnam War
- Our Street
- Our Suffering Brethren
- Our Uncle Jimmy a Working Man’S Hero
- Our Uncle Jimmy a Working Man’S Hero
- Our War
- Our War with Spain for Cuba's Freedom
- Our World War II Experience
- Our Year of War
- 'Ours'
- Out in the Boondocks: Marines in Action in the Pacific
- Out of Carnage
- Out of Harm's Way
- Out Of My Life, By Marshal Von Hindenburg. Vol. I
- Out Of My Life, By Marshal Von Hindenburg. Vol. II
- Out of Necessity: George Washington's Surrender of Fort Necessity to the French
- Out of Passau
- Out of Step
- Out of the Ashes: The Story of a Survivor
- Out of the Desert
- Out of the Firing Line … Into the Foyer
- Out of the Italian Night
- Out of the Mist, Memories of War
- Out of the Night
- Out Of The Prison House
- Out of the Shadows
- Out of Uniform
- Out of Weakness
- Out To Win The Story of America in France
- Outbreak: 1939
- Outcast Europe
- Outcasts
- Outer Space - A New Dimension of the Arms Race
- Outer Space - Battlefield of the Future?
- Outlaw
- Outlaw Platoon
- Outnumbered, Outgunned, Undeterred: Twenty Battles Against All Odds
- Outpost of Occupation
- Outpost War: U.S. Marines From The Nevada Battles To The Armistice [Illustrated Edition]
- Outre-Atlantique
- Outre-Pyrénées
- Outside the Fence
- Outsourcing Security
- Outsourcing the Air Force Mission: A Strategy for Success - Award Winning Study of the Role of Contr...
- Outwitting the Gestapo
- Outwitting the Hun: My Escape from a German Prison Camp: World War 1
- Over 100 Facts WW1
- Over and Above
- Over Empires and Oceans
- Over Here - War Time Rhymes: First World War
- Over Here: Impressions of America by a British Officer
- Over the Beach: The Air War in Vietnam
- Over the Front in an Aeroplane and Scenes Inside the French and Flemish Trenches (Illustrated)
- Over The Front In An Aeroplane, And Scenes Inside The French And Flemish Trenches [Illustrated Editi...
- Over The Seawall: U.S. Marines at Inchon [Illustrated Edition]
- Over The Side: Black Marines of WWII
- Over The Top
- Over the Top
- Over the Top with the 25th (WWI Centenary Series)
- Over the top with the 25th: Chronicle of events at Vimy Ridge and Courcellette
- Over the Top With the Third Australian Division
- Over the Top' with the Third Australian Division (WWI Centenary Series)
- Over There
- OVER THERE (War Scenes on the Western Front)
- Over There - War Scenes on the Western Front
- Over There with the AEF (American Expeditionary Force): The World War I Memoirs of Captain Henry C. ...
- Over There with the Marines at Chateau Thierry
- Over There, War Scenes on the Western Front
- Over There: War Scenes on the Western Front
- Over to you
- Overcome
- Overcoming Ambivalence: The Case for Japanese Martial Internationalism - Japan's Contemporary Milita...
- Overcoming Speechlessness
- Overcoming the Battlefield Stalemate:
- Overdue and Presumed Lost
- Overexploitation or Sustainable Management? Action Patterns of the Tropical Timber Industry
- Overture to Overlord
- Overview of the Korean War
- Overview of the Persian Gulf War, 1990
- Ovnis y armas nucleares
- Oxford in the Civil War
- Oxfordshire