At least some content in this article is derived from information featured in Fantastic Beasts and Where to Find Them (film). As such, spoilers will be present within the article.
Expeditionary Forces was a term used to describe military forces deployed to fight in a conflict abroad.
Jacob Kowalski served in France as part of the American Expeditionary Forces in the First World War. He remained stationed in Europe well after the conclusion of the war (presumably as part of a peace-keeping effort), returning to the United States in 1924.
- Fantastic Beasts and Where to Find Them (film) (Mentioned only)
- Fantastic Beasts and Where to Find Them: The Original Screenplay (Mentioned only)