marathag
Banned
IMHO,
I suspect if the Soviets had attempted this in the 1950's and 1960's the experiences of the Vietnamese in countering the line backer raids in 1972 and the Arab experiences in the Yom Kippur war and the subsequent conflict over Lebanon in 1983 would lead to a change in doctrine.
Edit to add:
I suspect the U.S. use of PGM's over North Vietnam and their ability to fly high altitude B52 missions over areas defended by SAM's would have been a significant wake up call. (Ie visions of USAF aircraft being able to potentially roam the rear areas of a Soviet Army while flying high enough to avoid most guns and many SAMS, while employing PGM's against high value targets would likely be an unpleasant thought for the Red Army.)
Most B-52s OTL were gotten by SA-2, that were getting long in the Tooth by 1972. Had the Soviet given state of the art(for the USSR, anyway) SARH SA-5 Gammon to the North, the USAF and USN losses would have been even higher after 1968.
But the USSR being what it was, it didn't even export these to the Warsaw Pact nations till quite late, let alone a 3rd rate Client state like North Vietnam