Russia is blocking more than 22 tons of Ukrainian grain, thereby threatening food crisis not only for Ukraine, but also for the whole world. Ukraine is one of the most important grain producers in the world. According to UN estimates, due to this situation, almost 20% of the world's population may experience the effects of famine. Ukrainian politician Petro Poroshenko appealed to European allies for help. According to him, the crisis can be prevented by protecting Ukrainian ports, because from there the Russians steal supplies.