The new U.S. aid package will reestablish a critical flow of weapons to Ukraine’s military, but the war will hinge greatly on which side can ramp up and sustain its firepower and troop numbers in the…

Ebrahim Raisi was more loyal to hard-line Supreme Leader Ali Khamenei than previous presidents, and whoever succeeds him is likely to be just as conservative.  

Russia’s early setbacks in its invasion of Ukraine could have foreclosed on some of President Vladimir Putin’s sweeping war objectives, but he is unlikely to relent given the conflict’s momentum.  

The two-year-old war in Ukraine—which is far from deadlocked—could pivot dramatically in the coming months. U.S. decisions will play a decisive role.