In 1986, Muslim extremists kidnapped four Soviet diplomats, demanding Moscow’s support for pro-Syrian terrorists on Lebanon. They were ignored, so one of the hostages was murdered. The KGB then kidnapped a Hezbollah’s family member. His genitalia were then shipped to the leader of Hezbollah with a note saying the leader’s other family members would suffer the same if the Soviet diplomats were not released or there were other attempts at kidnapping Soviets.
The soviet hostages were released and no other Soviet person has ever been taken gain.