use of the Luftwaffe's usual Hellblau light blue undersurface color for diurnal-flown aircraft, and a light gray base coat over the upper surfaces to match the skyglow over the German cities they were tasked with defending. The light gray base color usually had irregular patterns of darker gray splotches or irregular wavy lines spread over the light gray areas to increase the camouflage effect. Later in WW II, Luftwaffe night fighters, like some of the Kampfgeschwader-flown He 177A heavy bombers being used at night, switched back to a black coloration for the undersurfaces and vertical sides of the airframe, while retaining the light gray with dark gray-color disruptive patterns established in the mid-war period. During mid-1943, a Luftwaffe bomber pilot, Major Hajo Herrmann devised a new plan for night attacks. Bombers were silhouetted over the target areas from the fires below and searchlights, which would make them vulnerable to attack from above. Three Jagdgeschwader, (JG 300, JG 301 and JG 302) were tasked with these operations codenamed as Wilde Sau attacks. The units were equipped with Bf 109 G-6/N and Fw 190 A-5/U2, both aircraft versions were modified for night use and some of them were fitted with a Naxos passive radar detector. The FuG 350 Naxos-Z detector set could track enemy H2S radar transmissions from a range of thirty miles, which enable the German fighters to "home in" on British Bombers. Herrmann's tactics were reasonably successful, but the 30 Jagddivision only saw action until it was disbanded in March 1944. In early 1944, to counter the Luftwaffe's NachtJagdgeschwader, the British operated Mosquito night fighters in the bomber support role, with RAF Bomber Commands 100 Group. These units were tasked with harassing the German night fighter airfields, and disrupting their operations and attacking them when they were most vulnerable, during takeoff and landing. Defense of the Reich, 1942–1945 The Luftwaffe on top Between 1942 and 1945 the Luftwaffe had to continually expend its resources to counter the Allied strategic bombing campaign against targets deep inside Germany itself. RAF Bomber Command under Sir Arthur Harris had begun bombing German targets in early 1942, but after heavy losses switched to night bombing. The U.S. Army Air Forces (USAAF)'s Eighth Air Force eventually joined in the autumn of 1942 flying daylight missions. This campaign became known as The Defense of the Reich. In 1941 the Focke-Wulf Fw 190 fighter began to partially replace