U.S. midterm elections occur amid deep political divisions in Congress that are blocking policy reforms. CFR’s James M. Lindsay examines the foreign policy choices facing lawmakers.

With air strikes now underway in two countries, Washington must pursue a sustained campaign against ISIS militants, with initial emphasis on routing them in Iraq, says expert Ryan Crocker.

Unrest and accusations of police brutality in Brazil’s slums have threatened Rio’s security—and the country’s image—as it comes under a global spotlight with the World Cup, says expert Janice Perlman.

NATO’s response to Russia’s annexation of Crimea may require it to bolster eastern European members with both military and non-military actions, says expert Christopher S. Chivvis.

President Obama’s announced reforms should help restore public confidence in some controversial U.S. surveillance practices, says expert Andrew Weissmann.