U.S. President Donald Trump and Ukrainian leader Volodymyr Zelenskiy, in Rome for the funeral of Pope Francis, met one-on-one in a marble-lined Vatican basilica on Saturday to try to revive faltering efforts to end Russia's war with Ukraine.

The leaked American ceasefire proposal would end sanctions on Russia, freeze the front line and see America formally recognise Russia’s annexation of Crimea. The intelligence officer, based in Kyiv, does not hide his disdain.