最新：美航母已进入印度洋

Group 1 - The article reports that the USS Abraham Lincoln aircraft carrier has entered the U.S. Central Command's area of responsibility in the Indian Ocean due to increasing threats from Iran [1] - An official stated that the carrier is not yet prepared for any potential attacks on Iran [1] - Iranian Supreme Leader Khamenei is reportedly hiding in underground facilities, indicating possible preparations for military action by Iran [1] Group 2 - U.S. President Trump announced that a "large fleet" is heading to the Middle East [1] - The article mentions that the U.S. is increasing military presence in the Middle East, including the deployment of at least one aircraft carrier and additional missile defense systems [1]