No. The Soviets were pretty much oriented towards "Launch on Warning" in the 80's so the US made sure to notify them for tests. And then only fired from places

No. The Soviets were pretty much oriented towards "Launch on Warning" in the 80's so the US made sure to notify them for tests. And then only fired from places like Vandenberg on the coast of California. Any launch from a silo out in the middle of Kansas would be a war launch (or a really really unfortunate accident.) There have also been test firings from missile subs. But again, lots of notification, and done from a latitude/longitude that made it obvious it was a test.