The German government has warned against a further escalation of the situation in the Middle East following the assassination of top Hamas leader Ismail Haniyeh in Tehran. “We call on all actors to exercise maximum restraint. The logic of mutual retaliatory strikes is a mistake,” a spokesman for the Foreign Office told journalists in Berlin. He called on everyone to keep a cool head and do everything possible to de-escalate the situation. “Also the chance of a hostage agreement and a ceasefire in Gaza must not be squandered now,” he said. Foreign Minister Annalena Baerbock is in close contact …