President Vladimir Putin said Friday that Russia will continue to test and start mass-producing the hypersonic ballistic missile that it fired at Ukraine Thursday.

Vladimir Putin test-fired the “Oreshnik”, the Russian word for hazelnut tree, for the first time in combat on Thursday against the Ukrainian city of Dnipro. He later boasted that it had been designed for a “decisive” strike on Britain – and added a chilling warning.

Russian President Vladimir Putin says Moscow has tested a new intermediate-range missile in a strike on Ukraine and that it could use the weapon against countries that have allowed Kyiv to use their m