- Space Shuttle Launch System 1972–2004
- Space Strategy in the 21st Century
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- Space Warfighting Readiness: Policies, Authorities, and Capabilities - Threat to Missile Warning and...
- Space Weapons and U.S. Strategy
- Spaces of War, War of Spaces
- Spain and Argentina in the First World War
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- Spain at War
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- Spain, 1833-2002
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- Spanish Arms and Armour: Being a Historical and Descriptive Account of the Royal Armoury of Madrid
- Spanish Galleon 1530–1690
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- Spanish Republican Aces
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- Spare No One
- Spare Not the Brave
- Spare Parts: From Campus to Combat
- Sparks over Vietnam
- Sparta
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- Sparta: Fall of a Warrior Nation
- Sparta: Rise of a Warrior Nation
- Spartan Band
- Spartan Warrior 735–331 BC
- Speak Truth to Power
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- Spearhead
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- Spec Ops
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- Special Operations Forces Medical Handbook
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- Special Operations South-East Asia 1942–1945
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- Special Ops
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- Speed
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- Speedy
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- Spie della seconda guerra mondiale
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- Spies and Secret Service - The Story of Espionage, Its Main Systems and Chief Exponents
- Spies of the American Revolution
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- Spies, Dupes, and Diplomats
- Spies of the Kaiser
- Spies, Dupes, and Diplomats
- Spies, Lies, and Citizenship
- Spike & Chain
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- Spirit of Gallipoli
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- Spitfire
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- Spitfire Dive-Bombers Versus the V2
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- Spitfire Pilot [Illustrated Edition]
- Spitfire Stories
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- Sport, War and the British
- Spreading My Wings
- Spring 1914
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- Springfield Armory
- Springhaven. A tale of the Great War ... Third edition. VOL. II. THIRD EDITION.
- Springhaven. A tale of the Great War ... Third edition.Vol. I.
- Springhaven. A tale of the Great War ... Vol. III, Third edition.
- Spruce Root Basketry of the Alaska Tlingit
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- Spy Fiction, Spy Films and Real Intelligence