"The battle for the fairytale, 13th century Castle Itter was the only time in WWII that American and German troops joined forces in combat, and it was also the only time in American history that U.S. troops defended a medieval castle against sustained attack by enemy forces."
http://www.thedailybeast.com/articles/2013/05/12/world-war-ii-s-strangest-battle-when-americans-and-germans-fought-together.html
The book looks like it could be an interesting read. From the basics of the story, it also looks like it make a good movie, in my opinion.
Military History
WWII World War Two
However when it comes to strange I don't think it can get any weirder than this U.S. citizen and warlord of the century - Ivor Thord-Gray. He served with five Armies in 13 different wars covering several continents.
http://en.wikipedia.org/wiki/Ivor_Thord-Gray
Ivor Thord-Gray - Wikipedia, the free encyclopedia
He was born in the Södermalm district in central Stockholm, Sweden as the second son of a primary school teacher, August Hallström, and his wife Hilda. His eldest brother was the artist Gunnar August Hallström (1875–1943). His youngest brother was the archaeologist Gustaf Hallström (1880–1962).[2]
https://www.rallypoint.com/answers/outrageous-true-military-stories-which-is-your-favorite
Outrageous True Military Stories. Which is your favorite? | RallyPoint
Sometimes true stories that inspire movies are better than the fiction. Which Service has the best outrageous (true) hero stories? Back it up with a credible link or citation. Approximately 80 officers and 200 enlisted men from the Marine Corps served in the Office of Strategic Services (OSS) during World War II. In that group was one of the most decorated Marines in World War II and the most decorated member of the OSS, Col. Pierre “Peter”...
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