<Ul> <Li> Wilson ignores petition by Ho Chi Minh for help in creating Vietnam independent from French rule and led by nationalist government . </Li> </Ul> <Li> Wilson ignores petition by Ho Chi Minh for help in creating Vietnam independent from French rule and led by nationalist government . </Li> <Ul> <Li> Roosevelt declines repeated requests from the French to assist France's attempts to recolonize Vietnam . </Li> </Ul> <Li> Roosevelt declines repeated requests from the French to assist France's attempts to recolonize Vietnam . </Li>

When did the usa get involved in the vietnam war