a) in feb1930, ho chi minh brought together competing nationalist groups to establish Vietnamese communist party.

b) in 1940, when japan occupied Vietnam, nationalists under him had to fight against both French and japan

c) the Vietminh , which fought against Japanese , recaptured Hanoi.

d)democratic republic was formed and ho chi minh became its chairman.

e) after the defeat of French , Vietnam was split into north and south.

ho chi minh took power in north and struggled for creation of united Vietnam till the end of his life.