美军继续向中东地区大规模增兵，以向伊朗施压

Group 1 - The core point of the articles is the ongoing tensions between the U.S. and Iran, with the U.S. increasing military presence in the Middle East ahead of new indirect negotiations scheduled for February 17 in Geneva [2][3] - The U.S. is reportedly redeploying military aircraft, including tankers and fighter jets, closer to the Middle East, while extending the deployment of several U.S. military units that were initially set to rotate out [2] - Recent reports indicate that dozens of U.S. military transport aircraft have been delivering equipment to Jordan, Bahrain, and Saudi Arabia, with F-15 fighter jets already stationed at a base in Jordan since January 25 [2] Group 2 - The indirect negotiations between the U.S. and Iran are being facilitated by Oman, with both sides showing no signs of compromise on core issues [3] - U.S. President Trump has expressed that Iran is interested in reaching an agreement and indicated his indirect involvement in the negotiations [3]