Oct. 2 (UPI) -- The Dominican Republic is preparing to welcome hemispheric leaders to the 10th Summit of the Americas on Dec. 4 to 5 in Punta Cana. But the Cuban, Nicaraguan and Venezuelan governments have been excluded. The Dominican Foreign Ministry confirmed the decision in an official statement . The Caribbean nation holds the rotating presidency of the regional forum, and it invited 32 countries to participate. According to Dominican officials, the exclusions were made because those three