US forces under fire in Middle East as America slides towards brink

A defective drone in Iraq may have helped keep America from being dragged deeper into a widening Middle East conflict.

The drone, which was launched at the Erbil air base by an Iranian-backed militia before sunrise on Oct. 26, penetrated U.S. air defenses and crashed into the second floor of the barracks housing American troops at about 5 a.m, according to two U.S. officials familiar with the matter.

But the device laden with explosives failed to detonate and in the end only one service member suffered a concussion from the...