By Ben Aris in Berlin In the first months of the war in Ukraine it was the high mobile hit-and-run teams wielding the US-made shoulder-launchedJavelin tank-killers that dominated the fighting. That gave way to an artillery duel that has been going on for at least a year, but in recent weeks, low on shells and unsure of more Western supplies, Ukraine has ramped up its drone production and has begun usinglonger-range drones to target Russian oil refineries deep inside Russian territory, as the war moves into a third phase: the drone war. St Javelin Units of only three or four men spread out into…