President Obama’s decision to skip an upcoming summit in Spain set off a European reaction that highlighted areas of conflicting interests between the EU and the U.S., says CFR Europe expert Charles …

The drawn-out talks between Iran and the P5 +1 nations over Iran’s nuclear program are expected to resume after the U.S. presidential elections, says veteran arms control expert Daryl Kimball.

A deal to tame Iran’s nuclear program is within sight, but a number of potential pitfalls, including an untimely increase in U.S. sanctions, could derail diplomacy, says expert Suzanne Maloney.

The IMF and European leaders have gotten serious about Greece’s debt, says CFR’s Charles Kupchan. But the crisis also raises concerns about the eurozone’s unity.

Iran’s fueling of the Bushehr reactor is a reminder of ongoing concerns about the country’s nuclear intentions. Negotiations with Iran on a broad set of issues, though unlikely, might be the best pat…