美军航母进入印度洋

Group 1 - The core viewpoint of the article highlights the increasing military tensions between the United States and Iran, with the deployment of the USS Abraham Lincoln aircraft carrier to the Indian Ocean region as a response to perceived threats from Iran [2][3] - An official stated that the USS Abraham Lincoln is not yet prepared for any potential attacks on Iran, indicating a state of readiness but not immediate action [3] - Reports suggest that Iran's Supreme Leader Khamenei is hiding in underground facilities, which may indicate preparations for military action, while U.S. drone experts warn that Iran's drone fleet poses a significant threat to the USS Abraham Lincoln strike group [3]