Donald Trump announced Sunday that ISIS leader Abu Bakr al-Baghdadi was killed in a “very dangerous mission” by a US special forces operations mission. View live updates here.

Baghdadi, an Iraqi believed to be in his 40s, joined the Islamist insurgency against U.S. forces in Iraq following the 2003 invasion of that country.

Baghdadi, then age 39, spurred a transformation by focusing on the enduring disenfranchisement felt by Iraq’s Sunnis. The US had empowered a predominantly Shia clique of politicians, ...

Because Mr. al-Baghdadi moved around, the amount of material at the compound may have been limited. Still, even a few thumb drives, computers or other devices could provide huge amounts of data.

Abu Bakr al-Baghdadi, the cunning and enigmatic black-clad leader of the Islamic State who transformed a flagging insurgency into a global terrorist network that drew tens of thousands of recruits ...

Al-Baghdadi, an Iraqi who calls himself the caliph, or ruler, of the Islamic State, personally took the enslaved 26-year-old humanitarian aid worker to be imprisoned inside the home of Abu ...

Baghdadi claimed that the underground movement is expanding, even as it loses turf. He congratulated two groups, in Mali and Burkina Faso, for recently pledging formal allegiance to ISIS and ...

But Mr. al-Baghdadi’s wife kicked her out, apparently in a pique of jealously. She was then brought to the Hassans’ home, where she spent roughly 10 days before being moved again, ...

How al-Baghdadi was caught after years in hiding, and who in Isis will take over. Speculation mounts as to who will replace ‘caliph’ after another senior figure also killed, writes Bel Trew ...