Dude,, this was latter 70's ( last century)
We had the communist threat beat only in night vision(starlight scopes/passive system) laser range finders were regulated to like the Tow missile system no heat temperature guns or laser pointers,,,
dude the communist threat was pretty pathetic.
i was on a cruise that stopped by Vladivostok in 2010.
it turned out to be V-E day so they had their pacific fleet out.
to my shock, every boat except 1 had radar dishes that spun around and around.
only 1 boat had a phased array radar.
i started laughing to myself saying 'crap we were afraid of those pieces of crap'
their fleet would have fought a very short and exciting war...
almost got myself in trouble!
yes their night vision were pieces of crap - still remember iraq war disparity...