aria , ▁Germany . ▁ ▁References ▁ ▁Category : T ir schen re uth ▁( d istrict ) <0x0A> </s> ▁The ▁Ex il - CD U ▁( Christ ian ▁Democratic ▁Union ▁in ▁Ex ile ) ▁was ▁from ▁ 1 9 5 0 ▁to ▁ 1 9 9 0 ▁a ▁national ▁feder ation ▁of ▁the ▁CD U . ▁It ▁represented ▁CD U ▁members ▁who ▁had ▁escaped ▁or ▁exp elled ▁from ▁the ▁Soviet ▁occupation ▁zone ▁or ▁G DR . ▁ ▁Background ▁▁ ▁From ▁the ▁out set , ▁the ▁work ▁of ▁the ▁dem ocr atic ▁parties ▁in ▁the ▁Soviet ▁occupation ▁zone ▁was ▁sever ely ▁ham per ed . ▁Al ready ▁ 1 9 4 5 , ▁the ▁elected ▁chairman ▁of ▁the ▁East ▁CD U ▁Andreas ▁Herm es ▁was ▁de posed ▁by ▁the ▁occupation ▁authorities . ▁The ▁attempts ▁of ▁the ▁last ▁freely ▁elected ▁chairman ▁of ▁the ▁East ▁CD U ▁Jakob ▁Kaiser , ▁for ▁the ▁party ▁political ▁fre ed oms ▁to ▁preserve ▁were ▁however ▁not ▁successful . ▁With ▁the ▁dismiss al ▁of ▁the ▁dem ocrat ically ▁elected ▁party ▁chair ▁on ▁ 2 0 ▁December ▁ 1 9 4 7 , ▁the ▁CD U ' s ▁ability ▁to ▁determine ▁its ▁own ▁positions ▁ended . ▁Ear lier , ▁Kaiser ▁had ▁a ▁look ▁at ▁the ▁Second ▁Congress ▁of ▁the ▁CD U ▁in ▁Berlin ▁on ▁September ▁ 6 , ▁ 1 9 4 7 , ▁in ▁which ▁Kaiser ▁demanded ▁that ▁the ▁CD U ▁must ▁be ▁a ▁" wave bre aker ▁of ▁dog m atic ▁Marx ism ▁and ▁its ▁total itar ian ▁t