The group lost much of its territory years ago but continues to inspire lone-wolf attacks such as the one on Sydney’s Bondi Beach.

Secretary of State John Kerry made an unannounced visit to Baghdad Monday, as the country is tearing itself apart. In a nearly two-hour meeting with the Iraqi Prime Minister, Kerry said the U.S. will continue to work with the Iraqi government. Margaret ...

Two U.S. Army soldiers and a civilian interpreter were killed in Syria on Saturday by a suspected Islamic State attacker who targeted a convoy of American and Syrian forces before being shot dead, the U.