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…

The death toll from the Israel-Hamas war continues to mount, with no lasting settlement in sight. Meanwhile, concerns about humanitarian catastrophe and regional violence are spreading.

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.

The advanced U.S. fighter aircraft will mark a significant upgrade to Ukraine’s air force, but their impact on the war with Russia will hinge on several factors.

The reelection of Iran’s Hassan Rouhani, as well as U.S. President Donald J. Trump’s strong affirmation of ties with Sunni Arab states, sets the stage for an intense new round of competition in the M…

President Trump’s much-anticipated Afghan policy rightly avoids troop withdrawal timelines but offers little prospect for progress against the durable Taliban.