- Y ahora, volved a vuestras casas
- Y tú no regresaste
- Yakovlev Aces of World War 2
- Yalta
- Yalta: Witness to History
- Yalu River 1950–51
- Yamamoto
- Yamamoto Isoroku
- Yamato
- Yangtze Patrol
- Yangtze River Gunboats 1900–49
- Yank Bomber Boys in Norfolk: A Photographic Record of the USAAF in the Second World War
- Yankee Stranger
- Yankee Warhorse
- Yanks
- Yanks and Limeys
- Yanks behind the Lines
- Yanks in the RAF
- Yaquis
- Yarns of a Kentucky Admiral
- Yashka. Una donna combattente nella prima guerra mondiale
- Yatagan, Khanda, and Jamdhar: Swords and Sabers of Persia and India
- Year Of The Hawk
- Year of the Locust
- Year Zero
- Years of Peril and Ambition
- Years of Plenty, Years of Want
- Yeats and Violence
- Yellow Raven
- Yokosuka D4Y 'Judy' Units
- Yom Kippur War: Insights into Operational Theory
- York's Sacrifice
- Yorkie Doodle Dandy: A Memoir
- Yorkshire's War
- Yorktown's Civil War Siege
- You and the Atomic Bomb
- You Are Not Forgotten
- You Cannot Surge Trust: Combined Naval Operations of the Royal Australian Navy, Canadian Navy, Royal...
- You Could Fly an Airplane: Planning to be a Pilot for Kids - How Airplanes Work - Children's Aeronau...
- You Don't Belong Here
- You Don't Lose 'Til You Quit Trying
- You Tremble Body
- You Wouldn't Want to Be a Secret Agent in World War Two!
- You Wouldn't Want to Be a World War Two Pilot!
- You Wouldn't Want to Live in a Medieval Castle!
- You Wouldn't Want to Sail in the Spanish Armada!
- You Wouldn't Want to Live in a Medieval Castle!
- You Wouldn't Want to Sail in the Spanish Armada!
- You'll Be Sor-ree!
- You'll be Sorry
- You're In The Navy Now
- You're Stepping on My Cloak and Dagger
- Yougoslavie
- Young Citizen Old Soldier". From boyhood in Antrim to Hell on the Somme
- Young India
- Young Nelsons
- Young Voices
- Youngblood
- Your Baby’s Food in War Time
- Your Brother in Arms
- Your Parents Just Bought a Plane - What You Need to Know to Help Out and Have Fun for Kids - Childre...
- Youth In Asia
- Ypres
- YPRES 1914: An Official Account Published By Order Of The German General Staff
- Ystervuis Uit Die See
- Yugoslav Armies 1941–45
- Yugoslavia and the Soviet Union in the Early Cold War
- Yugoslavian armored units 1940-1945