What did north Vietnam do after the last Americans fled Saigon?

After the last Americans fled Saigon on April 30, 1975, North Vietnam quickly launched a military offensive, capturing the city and effectively ending the Vietnam War. The fall of Saigon marked the reunification of Vietnam under communist control, leading to the establishment of the Socialist Republic of Vietnam in 1976. The North implemented sweeping land reforms and sought to consolidate its power, facing numerous challenges in rebuilding the war-torn country.