Speculation about false flag operations: Is terror playing into Putin's hands?. Some believe Russian President Vladimir Putin had a hand in the Crocus City Hall attack.

Carlo Masala: Whether the attack prompted Putin “immediately’ to blame the Ukrainians, however, this seems questionable. The initiative at the front in the war against the Islamic State lies within Russia, he says. That is why the majority of Western observers also share the opinion that security expert CarloMasala expressed in an interview with ARD, ZDF and 3sat.