BERLIN—A dozen senior German officers convened at a triangle-shaped military compound in Berlin about 2½ years ago to work on a secret plan for a war with Russia. Now they’re racing to implement it.

Germany is secretly preparing for a scenario it once thought belonged to history books: a direct war with Russia. Inside a triangle-shaped military compound in Berlin, a dozen senior officers began ...

This transcript was prepared by a transcription service. This version may not be in its final form and may be updated. Caitlin McCabe: As talks to end the war in Ukraine continue, we look at Germany's ...