The Fulda Gap: A Cavalry Scout's Account of the End of the World That Never Came
twitter.comThey should at least call the army right, as "Warsaw Pact army". Specifically the Fulda gap breach was not planned to be sparheaded by Soviet army but they would send Czechoslovaks first into the meat grinder IIRC.
Perhaps some of the uncertainty at that border arose from considering whether the troops ordered forward would go, and who would they shoot at if they did.