When President Putin ordered Russian troops to invade Ukraine, he unleashed a terror which struck at the very heart of Europe and broke the world order that had been in place since the fall of the Soviet Union. Politico reporter Christopher Miller has been embedded in Ukraine for 12 years and is one of the few journalists who knows Ukraine inside out, who was at the frontline in Crimea and who reported from bombed out Mariupol. The inside story of Ukraine's bravery and defiance in the face of Russian aggression.