Baxter, Stephen. "Mittelwelt"
Divergence: 1918 CE
What if: Petain was not replaced as commander of French troops in 1918, and Germany quickly scored a western victory then turned eastward.
Summary: In 1940, an American engineer is privileged to participate in Imperial Germany's first manned rocket test flight, and finds himself caught in the Kaiser's first strike against Japan.
Published: In Interzone #82 (April 1994) and Traces, HarperCollins UK/Voyager 1998 (0002254271).
Original in: English.
Translation: French by Michègle Charrier as "Mittelwelt", in Aventure Lointaines #2, Denöel 2000 (2207250717).