we were dragged into it by the brits who needed our industry because they outsourced a ton of their own industry to the germans years prior (as did much of western europe). we also didn't agree with the peace treaty, that was mainly england and france, wilson disagreed and tried pushing a vastly less punitive treaty because he said the one the brits and french were pushing for would only lead to another war (and the japanese pushed for it too, iirc, because they thought they would be handed parts of german's overseas empire).
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