If this crisis catalyzes greater, sustained urgency in closing the gap between the Pentagon’s sprawling commitments and its all-too-finite capabilities, it may have a salutary stra

If this crisis catalyzes greater, sustained urgency in closing the gap between the Pentagon’s sprawling commitments and its all-too-finite capabilities, it may have a salutary strategic effect. But the period immediately ahead looks menacing, Hal Brands writes.