BRASILIA, Aug. 24 (Xinhua) -- Brazilian Foreign Minister Celso Amorim and his Ecuadorian counterpart Fander Falconi said on Monday that the Union of South American Nations (Unasur) Summit would be expanded.

    A Unasur extraordinary session would be summoned to discuss regional security issues such as the controversial Colombia-U.S. military agreement and other military agreements with third countries.

    During a press conference, visiting Ecuadorian Foreign Minister Falconi said that his country would discuss all the issues proposed. "It is not about accusing anyone, but the presidents to have a dialogue," he said.

    Colombia has confirmed President Alvaro Uribe's attendance to the session. Officials said Columbia would discuss agreements such as the Brazil-France negotiation on purchasing nuclear submarines and helicopters.

    "There was difference between buying equipment or training and the presence of foreign soldiers within a country's territory, despite the aim to combat drug trafficking," Amorim said.

    Amorim also said that the discussion on the Colombia bases might yield no juridical guarantees to confine the U.S. troops only to combat the drug trafficking inside Colombia.

    The Unasur Summit would be hosted on Aug. 28 in Bariloche, Argentina.