<Tr> <Th> Effective </Th> <Td> 10 January 1920 </Td> </Tr> <Tr> <Th> Condition </Th> <Td> Ratification by Germany and four Principal Allied Powers </Td> </Tr> <Tr> <Th> Signatories </Th> <Td> Principal Allied and Associated Powers <Ul> <Li> United States </Li> <Li> British Empire </Li> <Li> France </Li> <Li> Italy </Li> <Li> Japan </Li> </Ul> Other Allied powers (show) <Ul> <Li> Belgium </Li> <Li> Bolivia </Li> <Li> Brazil </Li> <Li> China </Li> <Li> Cuba </Li> <Li> Ecuador </Li> <Li> Greece </Li> <Li> Guatemala </Li> <Li> Haiti </Li> <Li> The Hedjaz </Li> <Li> Honduras </Li> <Li> Liberia </Li> <Li> Nicaragua </Li> <Li> Panama </Li> <Li> Peru </Li> <Li> Poland </Li> <Li> Portugal </Li> <Li> Romania </Li> <Li> Serb - Croat - Slovene State </Li> <Li> Siam </Li> <Li> Czechoslovakia </Li> <Li> Uruguay </Li> </Ul> Central Powers Germany </Td> </Tr> <Ul> <Li> United States </Li> <Li> British Empire </Li> <Li> France </Li> <Li> Italy </Li> <Li> Japan </Li> </Ul>

Cause and effect of germany signing the treaty of versailles