(ANSA) - BRUSSELS, 07 OTT - "It is a pleasure to be in beautiful Split for this year's Med9 summit. The Mediterranean is the blue heart of our Union. We are working hard to ensure a prosperous, resilient, and sustainable future for the region—addressing the issue of energy costs, discussing EU enlargement, and promoting sustainable, integrated economies," Commission President Ursula von der Leyen wrote on X. (ANSA).