Iran vows revenge for U.S. attack that killed powerful general

BAGHDAD — Iran promised to seek revenge for a U.S. airstrike near Baghdad’s airport that killed the mastermind of its interventions across the Middle East, and the U.S. said Friday that it was sending thousands more troops to the region as tensions soared in the wake of the targeted killing. The death of Gen. Qassem Soleimani, head of Iran’s elite Quds Force, marks a major escalation in the standoff between Washington and Tehran, which has careened from one crisis to another since U.S. President Donald Trump withdrew from the 2015 nuclear deal and imposed crippling sanctions. Almost 24 hours after the attack on Soleimani, Iraqi officials and Iranian-backed militias in Iraq reported another...