ETEIN SHEMER AIR BASE, Israel (Reuters) – As World War Two raged in the years before Israel’s founding, colonial British planes were scrambled here to fend off German forces. Now the German Luftwaffe is back, preparing for a far more remote fight with the modern equipment and expertise of the Jewish state established after the Nazi Holocaust. Worried by insurgent ambushes on its soldiers in Afghanistan and return fire that sometimes kills civilians or local allies, Germany last year ordered a small fleet of Israeli Heron spy drones designed to provide real-time images above a battlefield.That has brought German jet pilots to coastal Ein Shemer air base for accelerated retraining on the unmanned propeller planes, already daubed with their flag and Iron Cross emblem.