What's the significance of Crimea in the Russia-Ukraine war?

A Ukrainian missile strike hits Russia's naval headquarters in Crimea. Attacks on the Russian-controlled territory have intensified, just as Ukraine's ground offensive in the east, makes little headway. So why is Crimea so important to both sides in this war?   Join Host Laura Kyle Guests:  Andrey Baklanov - Deputy Chairman, Association of Russian Diplomats.  Domitilla Sagramoso - Senior Lecturer in Security and Development, King's College London. Michael Bociurkiw - Senior Fellow, Atlantic Council.