Exposure to advanced technology; jets, helicopters, bull-dozers, medical facilities, engineering equipment, transport planes like the C121 Starlifter, C-5 Galaxy, C123 and C130, etc.
The Vietnamese people had to endure the same hardships that the people of North and South Korea experienced during the Korean War 1950-1953, that the people of Germany and Japan experienced in WWII...
The Soviet Union (Russia) supplied the SAMs, MiG-21 interceptors, Training for their pilots (in the Soviet Union), T54 & PT76 tanks. The only difficulties encountered may have been when Soviet...