MILAN (Reuters) – Italian Prime Minister Mario Draghi and Ukraine’s president, Volodymyr Zelenskiy, discussed ways to free up exports to tackle the food crisis that is threatening the world’s poorest countries, Draghi’s office said on Friday. Russia’s blockade of Ukrainian ports has prevented shipments of grain, a major export product of both countries. Russia accuses Ukraine of mining the ports and Ukraine has described the Russian position as “blackmail.” In a phone call, Draghi assured Zelenskiy of the Italian government’s support for Ukraine along with the rest of the European Union countr…