When Putin first invades Crimea in 2014, the west is divided. Starting with demonstrations in Kyiv, this is the story of the fraught phone calls and summits that followed.

Putin turns to the Middle East. After Gaddafi’s overthrow in Libya, Putin shows just how far he’s willing to go to keep his ally, President Assad of Syria, in power.

Leaders including Boris Johnson, Theresa May and Volodymyr Zelensky discuss how they confronted Putin and manoeuvred to try and prevent his invasion of Ukraine.