Any comprehensive deal on Iran’s nuclear program would require intrusive international inspections. Expert Christopher Bidwell surveys the technical and political challenges.

Outmatched by the Russian military, Ukrainian forces require more support from the Pentagon, including defensive weapons, says expert Steven Pifer.

The United Kingdom will be irrevocably changed as a result of this week’s independence referendum, whichever way Scotland votes, says expert Richard Whitman.

The focus of the EU and U.S. response should go beyond the passenger jet downing and address broader concerns about Russia’s policies toward Ukraine, says CFR’s Stephen Sestanovich.

Britain finds itself at an unusual crossroads this summer as it negotiates a fraught relationship with Europe and prepares for a possible Scottish secession, says journalist Steven Erlanger.