持续冲突风险升高，美军或为对伊长期行动做准备

Group 1 - The U.S. is increasing military pressure on Iran while engaging in diplomatic negotiations, with President Trump confirming the deployment of a second aircraft carrier strike group to the Middle East to compel Iran to reach an agreement [1][3] - U.S. military preparations indicate a potential for prolonged military action against Iran, which could escalate into a more severe conflict than previously experienced, as Iran possesses a strong missile arsenal [1][4] - Trump emphasized the difficulty of reaching an agreement with Iran, suggesting that instilling fear may be necessary to resolve the situation [1] Group 2 - The "Gerald R. Ford" aircraft carrier strike group has been ordered to move from the Caribbean to the Middle East, with reports indicating that it will take at least a week to be fully deployed [3] - The Pentagon has been advised to delay military action until U.S. forces are better prepared, particularly in terms of defense capabilities to protect American interests from potential Iranian retaliation [4] - The U.S. military fleet currently includes eight destroyers capable of intercepting Iranian ballistic missiles and submarines equipped to launch cruise missiles at Iranian targets [4]