- 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 River Gunboats 1900–49
- Yangtze Showdown
- Yank Bomber Boys in Norfolk: A Photographic Record of the USAAF in the Second World War
- Yankee Stranger
- Yanks
- 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 Desperate Struggle
- Year Of The Hawk
- Year Zero
- Yellow Raven
- Yokosuka D4Y 'Judy' Units
- Yom Kippur War: Insights into Operational Theory
- Yorkie Doodle Dandy: A Memoir
- Yorkshire
- 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 Don't Belong Here
- You Don't Lose 'Til You Quit Trying
- You'll Be Sor-ree!
- You'll be Sorry
- You're In The Navy Now
- Yougoslavie
- Young Citizen Old Soldier". From boyhood in Antrim to Hell on the Somme
- Young India
- Young Nelsons
- Your Baby’s Food in War Time
- Youth In Asia
- YPRES 1914: An Official Account Published By Order Of The German General Staff
- Ypres 1914: Langemarck
- Ypres Passchendaele
- Yugoslav Armies 1941–45
- Yugoslavian armored units 1940-1945
- Yuma Proving Ground
- Yûn-nan, South of the Clouds