Western powers must enforce a no-fly zone over Ukraine to stop an unfolding humanitarian catastrophe, an activist said on Tuesday in an impassioned plea to British Prime Minister Boris Johnson to do more to help her country in the wake of Russia's military attack.
Johnson was taking questions from journalists at the British Embassy in Warsaw when Daria Kaleniuk, a Ukrainian activist from the NGO Anti-Corruption Action Centre told him that Ukrainians needed a no-fly zone.
