The measures represent a complete reversal of Germany’s post-Cold War Russia policy — which focused on pursuing economic ties rather than confrontation with Moscow — and mark a definitive end to the era of former Chancellor Angela Merkel. “We are living through a watershed era. And that means that the …

There is already pressure to get involved if there is a full-scale invasion, but our history with proxy wars is littered with folly. Editor’s Note, 2/24 6 a.m. EST: Russian President Vladimir Putin announced a “special military operation” against Ukraine Thursday morning local time and his forces have been entering …

The US and Russia both have integrated doomsday weapons into conventional war plans. The risk is low but it isn’t zero. If you are frightened by the current crisis in Ukraine, you are having a rational response. We are closer to war between the two largest nuclear-armed states than we …