Ukraine facing loss of its navy as Russian forces in Crimea dig in

NOVOOZERNOE, Ukraine (Reuters) - Lashed by the wind as it whips across Crimea's biggest lake, a third of Ukraine's warships have nowhere to go and nothing to do but rise and fall on its choppy waves.

Russian forces have blocked their only exit point to the Black Sea by sinking two ageing vessels there, and Russia's well-armed Moskva missile cruiser can be seen treading water a short distance off the coast, with menace.