No.
The Soviet Union (USSR) supplied North Vietnam, and the US fought for South Vietnam.
Sometimes when i fart i poo a little and if i try and hold it it comes out my nose.
The USSR bankrolled the Vietnam War for the North. They were North Vietnam's main supplier of weapons (everything from AK-47s to main-battle tanks and antiaircraft missiles), food, logistics (ammunition, vehicle parts, etc.), and fuel. Without the Soviet Union North Vietnam could not have mounted a major insurgency in South Vietnam, let alone four outright over the boarder invasions (1965, 1968, 1972 and 1975). Soviet troops did not infiltrate into South Vietnam, but they did man anti-aircraft SAM missile sites and fly MiG fighters against Americans. They helped to keep North Vietnam's infrastructure running during the bombing attacks. They were as involved with North Vietnam as the US was with South Vietnam. Yes, the USSR was involved in the Vietnam War.
Congress of Soviets of the Soviet Union ended in 1937.
Congress of Soviets of the Soviet Union was created in 1922.
Congress of People's Deputies of the Soviet Union was created in 1989.
The Soviet Union supported the Democratic Republic of Vietnam (North Vietnam) under Ho Chi Minh.
The former Soviet Union expended funds on military hardware with or without Vietnam. The ONLY difference was; the Vietnam ordnance was USED (consumed); after the Vietnam War, the Soviet ordnance (that was never used) had to be destroyed...as they were in the US.
Gang of Eight - Soviet Union - ended in 1991.
Sovient Union - the USSR and the Western Allies - Australia, U.S.A and Britain U.S., Soviet Union, Korea, China, Cuba, Vietnam, Germany.
Afghanistan
They were not involved.