Behind Putin’s war—and any discussions about peace—is a two-century-old fiction about the two countries’ unity.

H itler regretted the deal he made with Neville Chamberlain at Munich in 1938. What he actually wanted was war—his goal was ...

That version, the official said, used language that retained the pro-Ukraine tone the group of allies adopted after the full-scale invasion of the country in February 2022. The U.S. side went ...