Tit-for-tat moves this week included the use of American-made ballistic missiles to strike inside Russia, and new nuclear threats from Moscow. Neither appear to have influenced the war on the ground.

The Rostov region in Russia may be the next target of Ukrainian missile attacks, reports "The Wall Street Journal". This region is a key strategic point for Russian forces. Russian airports and ammunition depots are at risk following Ukraine's receipt of permission to attack targets within Russia.