Bova, Ben. "The Café Coup"
What if: Germany did not sink the Lusitania and the US never entered World War I.
Summary: Time travelers trying to prevent the atrocities of later in the 20th century arrange for Germany to win the war, later realizing they've sown the seeds for the rise of fascist France.
Published: In The Magazine of Fantasy and Science Fiction, September 1997; Twice Seven: Stories, Avon 1998 (0380797410BUY); One Lamp: The Best Alternate History Stories from F&SF (ed. Gordon Van Gelder), q.v.; and My Favorites: A Collection of Short Stories, Blackstone 2020 (1094000922BUY).