The U.S. may leave some forces in Syria to secure oil fields and make sure they don’t fall into the hands of a resurgent Islamic State, Defense Secretary Mark Esper said Monday.

An explosion rocked a mosque in eastern Afghanistan as dozens of people gathered for Friday prayers, causing the roof to collapse and killing 62 worshippers, provincial officials said. The attack underscored the record-high number of civilians dying in the country's 18-year war.

An Alabama woman who joined the Islamic State group in Syria won't be allowed to return to the United States with her toddler son because she is not an American citizen, the U.S. said on Wednesday. Her lawyer is challenging that claim.

After two years of bitter partisanship and personal attacks, President Donald Trump will call for unity and cross-party cooperation in Washington during Tuesday's State of the Union address, a message likely to ring hollow with emboldened Democrats eager to block his push for a border wall.

The U.S. military says a number of service members were killed Wednesday in an explosion while conducting a routine patrol in Syria — the first instance of U.S. casualties since President Donald Trump announced his intention to withdraw troops from the country last month.

In a surprise trip to Iraq, President Donald Trump on Wednesday defended his decision to withdraw U.S. forces from Syria where they have been helping battle Islamic State militants.

Brett McGurk, the U.S. envoy to the global coalition fighting the Islamic State group, has resigned in protest over President Donald Trump's abrupt decision to withdraw U.S. troops from Syria, a U.S. official said, joining Defense Secretary Jim Mattis in an administration exodus of experienced national security figures.

Six U.S. airstrikes that killed more than 60 people in a coastal Somali town were pre-emptive strikes to prevent a major extremist attack, according to a Somali intelligence officer.

A man with severe psychiatric problems killed his mother and sister and seriously injured another woman in a knife attack Thursday in a Paris-region town, officials said.