Members of Berlin's special police forces SEK (Spezialeinsatzkommando) stand guard in front of the Brandenburg Gate during the visit of US Secretary of State John Kerry in Berlin on February 26.

Kerry arrived in Berlin on Monday, a stop on a nine-nation, 11-day trip that will also take him to Paris, Rome, Ankara, Cairo, Riyadh, Abu Dhabi and Doha before he returns home on March 6. Reuters/Fabrizio Bensch