It was 3.30am on September 8th last year when the break-in began in the southwestern German city of Ulm.A black-clad group rushed towards the premises housing the German subsidiary of Israel’s largest arms company, Elbit. They smashed the front door, set off fireworks and on the facade sprayed slogans reading “shut Elbit down” and “child murderers”.As that group dispersed, a second group broke a side window and climbed into the premises, destroying office and technical equipment, damaging a bathroom and detonating smoke bombs.The group locked themselves in and posted a video of their attack online, prosecutors say, before waiting for...