What is was the relationship of north Vietnam with the communist movements led by the soviet unin and china?
The communist super-power's goal was expanding communism; Hanoi was trying to expand communism by attempting to take over the "Republic" of South Vietnam, a non-communist country (nation). North Vietnam was in keeping with communist expansion; which is why the Chinese Communists/USSR supplied Hanoi with war material & training.
because people were immature. The Vietnam War was part of the Cold War. At the time, there was a vast global struggle between the Soviet bloc and the West. It was feared that if communist North Vietnam were to take over the non-communist south, that would just be one more step toward the global domination of the communist Soviet bloc. As it turned out, this fear was entirely misplaced.
Both were 'hot' pateches in the Cold War between the Communist powere- the Soviet Union and Chines Peoples Republic and the West. Both wars sought to contain the attempted Communist expansion which was using proxies: - in Korea, North Korea backed by Communist Chinese forces and resources with covert Russian support, - in Vietnam North Vietnam backed by Communist Russia and Communist Chinese resources.