Not just a name from Bond stories, Smersh (“Death to spies”) was a real organisation. As much an instrument of terror to control the civilian population as an intelligence unit, it was responsible for thousands of deaths on its own side.

Now the name has resurfaced in the Ukraine war, though it’s unclear whether there’s a new version of the organisation operating or if it’s just being used for propaganda purposes.

https://theconversation.com/smersh-why-putin-has-reinstated-stalins-notorious-and-much-feared-anti-spy-unit-220627