Recep Tayyip Erdogan, the Turkish president, was greeted with protests and controversy in Germany on Friday as a state visit that was supposed to repair relations between the two Nato allies appeared only to highlight their stark divisions. Thousands of demonstrators marched through the streets of Berlin under a banner of “Erdogan not welcome”, while a Kurdish activist burnt himself to death in an apparent suicide protest. Angela Merkel appeared to throw Mr Erdogan a lifeline by offering him a full state visit at a time when Turkey is struggling under the weight of US economic sanctions. But there was little sign of common ground after the two held face-to-face talks. “It is important to continue the dialogue with Turkey, because we can only work out our differences by talking,” Mrs Merkel told a joint press conference. "There is much that unites us: Nato membership, the migrant issue, and the fight against terror." But she added: “There are still profound differences between
