Before the beginning of 1944 the Luftwaffe had reduced its fighter strenght in the east to help bolster the Defence of the Reich. I have not had the time to put my papers together here; i will do this by memory, hoping mistakes and unaccuracies are minimum. For Reichsverteidigung the Luftwaffe had the following units deployed right after the Kursk salient battle of the summer 1943: I and II/JG 1, JG 3 (arriving from the USSR), JG 11, II/JG 300, II/JG 27, JG 51 (arriving from the USSR), III/JG 54, ZG 26, ZG 76, and a few months later II/ JG 53 ,JG 77 and JG 4 would join the defence of the reich. JG 2 and JG 26 were still in France, but if i recall correctly one gruppen of the latter was involved in Defence of the Reich duties. JG 5 was in Norway. JG 50 was officially disbanded by october 1943. Add the nachtjagdgruppen to the list. This could be the period (late 1943-1944) when the Defence of the Reich concept could be conceived at its purest and original form. When western and eastern fronts were clearly separated and detected. January 1945 to the end, the operating areas of VVS and the western air forces are now overlapping. I do believe telling that from February (1945) to war´s end Jagdgeschwadern "were sent east" to deal with the soviet advance -now inside Germany itself- is somewhat exaggerated if you will, since the enemy targets -soviets in this case- were easily within the range of virtually any of the Reichsverteidigung Geschwadern "trapped" inside Germany. With this i mean that by 1945, German fighter units could meet with both USAAF and VVS formations during the same day, so it is not possible to determine in due accuracy which units were deployed east and which ones were deployed west.