President-elect Donald Trump vowed Monday, a month before he takes office, to wipe "terrorists" off the face of the Earth, after a series of high-profile attacks in Germany, Turkey and Switzerland.
Police and emergency workers stand next to a crashed truck at a Christmas market in the west of Berlin, Germany, on December 19, 2016. (Reuters)
This picture taken on December 19, 2016 shows Andrey Karlov (bottom), the Russian ambassador to Ankara, lying on the floor after being shot by a gunman (R) during an attack during a public event in Ankara. (AFP)