Russian security forces stopped the cell of the Hizb ut-Tahrir al-Islami terrorist group in Crimea. The terrorists spread extremist ideology among the inhabitants of the peninsula and recruited Crimean muslims into their ranks.
The Kaliningrad region is a specific Russian territory surrounded by Lithuania and Poland, which are the members of the EU and NATO. There are quite serious revanchist groups present in Lithuania and Germany. It is well-known that the population of the Kaliningrad region is an object to active ideological influence from the side of neighbouring countries.
Neither Lithuania nor Poland have any territorial claims for Kaliningrad. The claim that there are “serious revanchist groups” from Germany and Lithuania questioning the status of the Kaliningrad region is not supported by any evidence.
See previous examples of disinformation messages alleging that Kaliningrad exclave is threatened by NATO; The US plans to take over the Kaliningrad region and Aim of NATO’s exercise: prepare for the annexation of Russia’s Kaliningrad region.