Venezuelan President Hugo Chavez said Friday he has documentary evidence that the United States plans to invade his country.

Chavez, interviewed on ABC’s “Nightline,” said the plan is called “Balboa” and involves aircraft carriers and planes. A transcript of the interview was made available by “Nightline.”

He said U.S. soldiers recently went to Curacao, an island off Venezuela’s northwest coast. He described as a “lie” the official U.S. explanation that they visited Curacao for rest and recreation. “They were doing movements. They were doing maneuvers,” Chavez said, speaking through a translator.

He added: “We are coming up with the counter-Balboa plan. That is to say if the government of the United States attempts to commit the foolhardy enterprise of attacking us, it would be embarked on a 100-year war. We are prepared.”