The creation of a new military force in Syria raises fears of fighting among American allies and could draw the U.S. deeper into the conflict.
The three-year conflict set the stage for decades of tension on the Korean Peninsula, but today many Americans know little about it.
The strategy the president plans to outline Monday is at odds with his often-warm relations with the leaders of China and Russia.
When the Islamic State seized territory in Iraq and Syria, it had the time and space to industrialize advanced weapons manufacturing. The results included explosive space heaters and chemical rockets.
Security forces braced for more demonstrations against the U.S. decision to recognize the city as Israel’s capital.
The guilty plea by Michael T. Flynn, President Trump’s former national security adviser, brings the investigation of Russian interference in the 2016 election into Mr. Trump’s inner circle.