伊朗武装部队防空网络在塔布里士市上空击落另一架美国制造的F-35隐形战斗机，这是伊朗防御系统击落的第四架此类飞机。

Core Points - The Iranian armed forces' air defense network shot down another U.S.-made F-35 stealth fighter jet over Tabriz, marking the fourth such aircraft downed by Iran's defense systems [1] Summary by Category - Military Developments - The incident highlights the increasing capabilities of Iran's air defense systems, particularly in targeting advanced U.S. military aircraft [1] - The downing of the F-35 indicates a significant escalation in military tensions between Iran and the United States [1] - Geopolitical Implications - This event may lead to heightened scrutiny and potential responses from the U.S. and its allies regarding military operations in the region [1] - The incident could influence future defense strategies and military engagements in the Middle East [1]