CARACAS (Reuters) - Showing off new energy after his recent cancer treatment, Venezuela's President Hugo Chavez hosted Latin American leaders at a meeting on Friday to create a new regional body that pointedly excludes the United States. The inauguration of the 33-member Community of Latin American and Caribbean States, which also deliberately excludes Canada, was the Venezuelan socialist's biggest moment on the world stage since he underwent surgery in June. Chavez, who wants to win re-election next October in the OPEC nation, warmly welcomed other leaders including Dilma Rousseff of Brazil, Argentina's Cristina Fernandez and Cuba's Raul Castro.