President Obama has announced several rounds of economic sanctions on Moscow, acting with European allies. Here are answers to some simple questions about sanction specifics.
Sophisticated and lethal, growing in number, Islamic State and other extremist groups won't become a global force. Here's why.
Reschedule your trip to see the set of Luke Skywalker's home planet. The US and UK governments have warned citizens against traveling to the western border of Tunisia as the Islamic State encroaches on the region.
As the Islamic State and other groups step up attacks in the Mideast and North Africa, the responses of each country matter even more – and reveal sharp differences. Which response will best lead to peace?
Islamic State, which has a growing presence in Libya, claimed responsibility for the deadly museum attack. Tunisia said two gunmen received military training in Libya.
A domestic oil glut helped bring US crude prices inline with the global benchmark. But in the last month or so, the spread between the two has widened again.