U.S. could intervene as Chavez threatens war on Colombia

Venezuela threatened to declare war on neighbouring Colombia last night, raising the prospect of the U.S. being drawn into conflict in South America. Venezuela's Left-wing president Hugo Chavez ordered ten tank battalions to the Colombian border and put war-planes under emergency stand-by. The tension follows Colombia's decision to send its army to strike against anti-government guerrillas hiding in the jungles of Ecuador.