On Feb. 2, the United States formally declared its intention to withdraw from the Intermediate-Range Nuclear Forces, or INF, treaty. The official declaration, which had been signaled by the Trump administration well in advance, set the clock ticking: Unless Russia unexpectedly returns to full and verifiable compliance with the treaty …

As NATO has focused its attention on Russia’s offensive military capabilities in Eastern Europe, an equally significant and, in practice, more problematic issue has been largely ignored: Russia’s preponderance of “anti-access, area-denial” capabilities in the borderlands between the Baltic and Black Seas. Is NATO focusing on the wrong Russian threat …

At least three people were killed on Thursday in a series of explosions including two suspected suicide bombings in northwest Syria near the Turkish border, witnesses said, in the first such attacks this year. A rescue worker said one civilian was killed after an improvised explosive device went off in …