美国打击伊朗核设施，中东局势螺旋式升级

Group 1 - The core viewpoint of the articles revolves around the recent U.S. military strikes on Iranian nuclear facilities, marking a significant escalation in the U.S.-Iran conflict and raising concerns about the future stability of the Middle East [1][2][6] - The U.S. military action targeted three key nuclear sites in Iran: Fordow, Natanz, and Isfahan, with the operation involving over 125 aircraft and the use of 75 precision-guided munitions, including 14 GBU-57 massive bunker busters [4][5] - Analysts suggest that the U.S. strikes may be a calculated move to apply pressure on Iran regarding its nuclear program, while also responding to domestic and Israeli calls for a tougher stance against Iran [3][6] Group 2 - The response from Iran is seen as a critical variable that could influence the trajectory of the conflict, with Iranian officials indicating that the damage to the Fordow facility is not as severe as claimed by the U.S. and that they are considering their options for retaliation [6][7] - Potential Iranian responses could include attacks on U.S. military bases in the region or disrupting the Strait of Hormuz, a vital shipping route for global oil trade, which could have significant implications for energy markets [7][8] - There are calls from various international actors for diplomatic solutions to de-escalate the situation, emphasizing the need for dialogue over military action to prevent further deterioration of regional stability [8][9]