美军或夺岛，以迫使伊朗开放霍尔木兹海峡

Group 1 - The U.S. is increasing military presence in the Middle East, deploying approximately 2,200 Marines from the 31st Marine Expeditionary Unit to potentially seize Iran's key oil export hub, Halke Island, to pressure Iran into opening the Strait of Hormuz [1] - Halke Island is crucial for Iran's oil exports, with 90% of its crude oil shipped from this location, which is about 25 kilometers from the Iranian coast [3] - The U.S. military has already conducted strikes on military targets on Halke Island, indicating a strategic move to disrupt Iran's oil infrastructure [3]