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 president’s first national security strategy eloquently sums up the U.S. role in the world and what should be done to defend it, but much of the document is at odds with what the president himsel…

Washington should respond to sectarian conflict near Kirkuk by seeking to preserve a united Iraq while supporting Kurdish autonomy.

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