A poor choice.
Ho Chi Minh requests Chinese assistance. Hundreds of thousands of maased Chinese soldiers as well as almost two thousand T-55s and T-62s storm across the NK border to meet the SV push with NVA forces. Hundreds of MiG-21s take to the skies along with high amounts of older MiG-19s. Chinese artillery moves across the border.
Another 300,000 are in the process of being moved to the border, along with many more thousands of tanks, jets, artillery pieces and other equipment.