Factual error: The German tanks are American M47s, post WW2. They had the same hulls as the M46s (also post-WW2), but a better slope and greater effective armor on the turrets.
The Devil's Brigade (1968)
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Directed by: Andrew V. McLaglen
Starring: William Holden, Cliff Robertson, Andrew Prine, Vince Edwards
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More mistakes in The Devil's Brigade
Maj. Gen. Maxwell Hunter: Faith moves mountains. It doesn't take them.