Some positive points should be made. The greatest contribution to winning the war made by Bomber Command was in the huge diversion of German resources into defending the homeland; this was very considerable indeed. By January 1943 some 1,000 Luftwaffe night fighters were committed to the defence of the Reichmostly twin engined Bf 110 and Ju 88. Most critically, by September 1943, 8,876 of the deadly, dual purpose 88 mm guns were also defending the homeland with a further 25,000 light flak guns20/37 mm. Though the 88mm gun was an effective AA weapon, it was also a deadly destroyer of tanks, and lethal against advancing infantry. These weapons would have done much to augment German anti-tank defences on the Russian front.