<Tr> <Td> Expulsion of Germans </Td> <Td> 1944--1950 </Td> </Tr> <Tr> <Td> Cold War </Td> <Td> 1945--1990 </Td> </Tr> <Tr> <Td> <Ul> <Li> Reunification </Li> <Li> New federal states </Li> </Ul> </Td> <Td> </Td> </Tr> <Ul> <Li> Reunification </Li> <Li> New federal states </Li> </Ul>

What was the name of the republic that was established in germany after the second world war