Ukraine’s intensifying crisis has the Obama administration hinting at tougher sanctions against Russia, which could threaten Moscow’s ability to trade and invest, says CFR’s Robert Kahn.

Talks over Iran’s nuclear program have concluded with a deal that will limit Iran’s nuclear capabilities in exchange for relief from economic and financial sanctions. Before the sanctions are lifted,…

CFR’s Matthew Kroenig discusses the newly released IAEA report on Iran’s nuclear program.

Western leaders’ ejection of Russia from the Group of Eight eliminates a "longstanding irritant" for the G7, but it will not likely influence Putin’s strategic calculations, says CFR’s Stewart M. Pat…