Ukraine’s top diplomat urged the international community to “stop Putin” after the Russian president announced a military attack on Ukraine and explosions were reported near Ukrainian cities. Al Jazeera quotes Foreign Minister Dmytro Kuleba as saying that the Russian president’s actions are a “full-scale invasion” on Ukraine, and calling it a “war of aggression.” “The world can and must stop Putin. The time to act is now,” he wrote on Twitter minutes after Russia’s invasion. “Ukraine will defend itself and will win.” Kuleba also posted a “to do list” of steps to deter Russia and said the future of both Europe and the world “is at stake.”