The countries are both claiming responsibility for the airstrike in Syria that killed Mohamed al-Adnani, the Islamic State's chief spokesman.
America's NATO ally Turkey is fighting US-backed Kurdish forces in northern Syria in the wake of mixed messages sent by the US amid the fight against the Islamic State.
The US is now facing a splintering of what was already a shaky coalition of forces who hold wildly varying priorities.
After a 500 percent price hike, Mylan Pharmaceuticals is reducing the cost of the anti-allergy devices for some people. Not everybody is convinced.
The Turkish forces are part of a coalition that includes Syrian rebels and American aircraft aimed at pushing ISIS from the Syrian border town of Jarablus.
American troops just returned to southern Helmand province to help defeat a Taliban offensive that threatens the provincial capital, and one US service member has already been killed.
Since the Islamic State swept into Sinjar in August, 2014, the women have been treated as property of the group's fighters, who marry, trade, or sell them.
The Republican nominee will likely be briefed at FBI headquarters in New York by the Office of the Director of National Intelligence.
Saudi-led coalition aircraft attacked a Médecins Sans Frontières-supported hospital in northern Hajja province in Yemen on Monday, killing at least seven people and wounding 13.
Clinton released her 2015 tax returns on Friday, showing she and Bill Clinton earned most of their money from speaking fees and book deals.
Last month’s cyberattack on the Democratic National Committee has raised fears that a foreign government or independent operator could hack the US presidential election itself.
Barack Obama did not "found ISIS", as Donald Trump has said. Neither did Hillary Clinton. A Jordanian named Abu Musab al-Zarqawi did.
Syrian rebels cut the main supply route to the part of the city held by the regime, and Assad's army is fighting back hard.
The candidates are about to get classified briefings from the US spy agencies. But neither one is going to learn any major state secrets from them.
US intelligence and private cybersecurity firms say Russia almost certainly hacked the Democratic National Committee and leaked documents, and now the question is whether the US government is going to do something about it.
The messages came as the Syrian government has cut off rebel-held Aleppo from the outside world, potentially trapping the 250,000 people who live there in a violent siege without food, medicine, and other staples.
After praising Turkey's Recep Tayyip Erdogan for his response to last week's failed coup, Donald Trump signaled that he would be willing to break with decades of US policy.
Human rights groups say US-led coalition airstrikes killed at least 56 civilians in and around the besieged city of Manbij in northern Syria on Monday and Tuesday.
The FBI says it caught a terrorist trying to blow up a synagogue on the outskirts of Miami — but the FBI supplied the bomb as part of an undercover operation.
The Saudi-led coalition said its offensive had killed 800 al-Qaeda fighters and several leaders, though Mukalla residents told Reuters the number appeared unlikely and the group withdrew largely without a fight.