Rome, May 20 - Fighting high youth unemployment, trade relations, and preparing for next month's summit of the Group of Eight (G8) major nations were key topics when United States President Barack Obama chatted by telephone Monday with Italian Premier Enrico Letta. The conversation was "long and friendly," according to Letta's office. The pair will meet face to face at the G8 summit on June 17 and 18 in County Fermanagh in Northern Ireland. Besides dealing with youth joblessness, Letta described his government's other economic and financial priorities, his office said. The two leaders also discussed trade and investment relations and the crisis in Syria.