After rocket attack, Biden faces first real test on Iran

Joe Biden faces his first real test with Iran. A barrage of 15 rockets in northern Iraq that struck a US base, killing a military contractor and wounding a soldier, were likely aimed as much at testing the new president’s mettle as they were at causing damage.

In the hours after the attack on Erbil airport, where much of the remaining US presence in Iraq is based, a Shia group loyal to Iran felt emboldened enough to claim it. Although the boast was from a hitherto unknown group, it left...