The Islamic State’s attack on Paris demonstrate that both Europe and the United States need to commit to winning the ideological war against extremism with renewed vigor, says CFR’s Farah Pandith.

Puerto Rico’s debt crisis has entered a new stage. Without congressional action and deeper reforms, the island could find itself unable to provide basic services, says CFR expert Brad Setser.

The twin bombings in Brussels have exposed the need for closer European security cooperation at the same time that anti-EU political forces are on the rise, says expert Ian Lesser.

Beyond China’s market upheaval is a country struggling with how to relax state control over the economy amid a slowdown that has global implications, writes CFR’s Robert Kahn.

Special tax incentives have enabled Puerto Rico to borrow irresponsibly for years, and now the island must take painful steps to balance its budget, explains expert Matt Fabian.