U.S. lawmakers react to President Obama’s immigration speech; world powers and Iran reach a deadline on nuclear talks; and the London Conference on Afghanistan takes place.

World powers convene in The Hague for a nuclear summit; the Group of Seven discusses Ukraine; EU-U.S. trade talks resume in Brussels; and President Barack Obama travels to Italy and Saudi Arabia.

Tensions rise between security forces and protestors in Ukraine; South Korea and the United States hold military exercises; and the Sochi Olympics come to a close.

A preview of world events in the coming week from CFR.org: President Obama visits Africa; the U.S. expands sanctions on Iran; NATO's Secretary General goes to Georgia; and the U.N. reports on its Mil…

A preview of world events in the coming week from CFR.org: United States-North Korea talks are held in Geneva; the first post-Arab Spring election takes place in Tunisia; and United Nations Day is ma…

Thirty years ago, Rwanda’s government began a campaign to eradicate the country’s largest minority group. In just one hundred days in 1994, roving militias killed around eight hundred thousand people…