Zelenskyy drew the comparison at the Ukrainian International Summit on Food Security on Saturday, accusing Russia of causing another global crisis.Russian air strikes have caused widespread power outages, and the United Nations warned in June that the war would lead to an "unprecedented wave" of global hunger.The occupation and the blockade left thousands of people without food and water from the very beginning."With the help of the UN, Russia and Ukraine came to an agreement to open a corridor to export grains over the summer, but Russia resumed its blockade in October, accusing Ukraine of a drone attack, according to The Associated Press."We must prevent the further spread of this crisis and this global challenge," Zelenskyy said Saturday."