The Russian navy's bond with Crimea

The Admiralty Cathedral in Sevastopol, Crimea, is a sacred place for the Russian navy.

It is the burial vault of some of the country's best-known naval commanders.

The naval link is just one facet of Russia's enduring link to Crimea, the peninsula annexed by Moscow from Ukraine this month.

Former tour guide Alexander Ivashevsky showed BBC News around.

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