又一艘驱逐舰抵达，美国在中东部署至少10艘军舰

Group 1 - The core point of the article is the increased military presence of the United States in the Middle East, with at least 10 naval vessels deployed amid speculation of potential airstrikes against Iran [1] - The USS Delbert D. Black, a guided-missile destroyer, arrived in the Persian Gulf on the 28th, contributing to the total of 10 U.S. naval ships in the region, including the USS Abraham Lincoln aircraft carrier [1] - The U.S. naval deployment consists of 6 destroyers and 3 littoral combat ships, which are capable of both land strike missions and defense against missile and drone attacks [1] Group 2 - The littoral combat ships have extensive land strike capabilities that can cover a wide range from the coastline to inland areas [1] - A U.S. Navy Osprey tiltrotor aircraft was tracked heading to Oman, indicating support for special operations and the ability to deploy ground assault forces [1] - Reports also indicate that HC-130J long-range rescue aircraft are being sent to the Middle East, which could signify preparations for potential airstrikes against Iran [1]