alliance for germany bonn bundestag central committee communism communist party of germany communist party of the soviet union constitution of east germany czechoslovakia deutsche mark east berlin east germany egon krenz elections in germany erich honecker free german youth general secretary german language glasnost gregor gysi hamburg handshake helsinki helsinki accords hesse intershop left leipzig lieutenant colonel list of political parties in germany lower saxony marxism-leninism mikhail gorbachev mikhail suslov ministerrat neues deutschland new economic system otto grotewohl perestroika poland politics of germany potsdam conference red red flag russian language sergei ivanovich tiulpanov social democratic party in the gdr social democratic party of germany socialist unity party of west berlin soviet military administration in germany soviet union soviet occupation zone staatsrat strategic defense initiative volkseigener betrieb volkskammer walter ulbricht warsaw pact west berlin west germany western allies wilhelm pieck wolf biermann yalta conference