(ANSA) - BELGRADE, APR 29 - The Three-Seas Initiative, a Polish-led economic partnership, will expand to include Montenegro and Albania, with Turkey and Spain serving as strategic partners, Polish President Andrzej Duda said, according to TVP. "This year's summit is particularly important because of the current geopolitical situation and the war going on beyond Poland's eastern border," the Polish president stated on Monday at the opening of the Tenth Summit of the Three-Seas Initiative in Warsaw, according to TVP. (ANSA).