President Obama pauses after answering questions from the news media during his meeting with Baltic leaders at the White House on Friday. Pablo Martinez Monsivais/AP hide caption

itoggle caption Pablo Martinez Monsivais/AP

Anti-war protesters rally outside Downing Street in London on Wednesday. Britain's Parliament rejected the country's involvement in any military action against Syria. The U.K. government had been among those seeking a strong response to the alleged use of chemical weapons in Syria. Matt Dunham/AP hide caption

itoggle caption Matt Dunham/AP

At the White House, President Obama and his advisers continue to work to build support in Congress and among allies for striking Syria. Jacquelyn Martin/AP hide caption

itoggle caption Jacquelyn Martin/AP

The bride, groom and wedding party celebrate Thursday in the Syrian capital, Damascus. It was a brief respite for residents of the neighborhood who were expecting U.S.- or NATO-led airstrikes. For NPR hide caption

itoggle caption For NPR

Russian President Vladimir Putin greets his Syrian counterpart, Bashar Assad, in Moscow on Dec. 19, 2006. Russia --€” along with China and Iran --€” has remained a steadfast ally of Assad amid calls for international intervention in Syria. Mikhail Klimentyev/AP hide caption

itoggle caption Mikhail Klimentyev/AP