German President Frank-Walter Steinmeier has cancelled a planned panel discussion on the Gaza war at his official residence in Berlin amid criticism that no Palestinian voice had been invited to take part. At the event called “How do we talk about the war in the Middle East?” originally scheduled at Bellevue Palace for Thursday, Steinmeier had intended to give a speech and discuss the topic with three guests, Meron Mendel, director of the Anne Frank Educational Centre, journalist Tilo Jung and Melody Sucharewicz, an expert on German-Israeli relations. Critics have called out the lack of a Pale…