President Hugo Chavez on Wednesday warned Colombia not to allow a U.S. military base on its border with Venezuela, saying he would consider such an act an "aggression." Chavez said he would not permit Colombia's U.S.-backed government to establish an American military base in La Guajira, a region spanning northeastern Colombia and northwestern Venezuela. The Venezuelan leader said if Colombia allows the base, his government will revive a decades-old territorial conflict and stake a claim to the entire region. "We will not allow the Colombian government to give La Guajira to the empire," Chavez said, referring to the U.S. during a speech to a packed auditorium of uniformed soldiers. "Colombia is launching a threat of war at us."