While Russian troops are intensifying their offensive in the two eastern states of Ukraine, they are fiercely fighting with Ukrainian troops over ports and islands in the Black Sea in the south.

Russia is also likely to aim to hurt the economy by expanding control of the Black Sea coast in southern Ukraine and cutting off Ukraine's maritime transport routes.

This is a commentary by Asami Mochizuki, a caster about the aim of Russia.

(The video is 2 minutes and 43 seconds. It cannot be viewed on data broadcasting.)