President Obama says new sanctions will target Venezuelan figures who have helped repress human rights. Here, opposition leader Maria Corina Machado (center) marched with opponents of President Nicolas Maduro in Caracas to mark International Women's Day. Federico Parra/AFP/Getty Images hide caption

itoggle caption Federico Parra/AFP/Getty Images

President Vladimir Putin speaks in Moscow on Dec. 23. Russia's current economic crisis stems from Western sanctions and diving oil prices. Maxim Shipenkov/AFP/Getty Images hide caption

itoggle caption Maxim Shipenkov/AFP/Getty Images

Secretary of State John Kerry talks Thursday with Russian Foreign Minister Sergey Lavrov during a meeting in Rome to discuss Ukraine. Diplomacy is among the several approaches the U.S. is taking to resolve the crisis. Kevin Lamarque/AP hide caption

itoggle caption Kevin Lamarque/AP