分析与报告

U.S. and Russian delegations held discussions in Geneva on February 23, 2023, regarding a new nuclear arms control treaty to replace the recently expired New START treaty. President Trump proposed a modernized strategic weapons treaty, and both sides agreed to adhere to the original treaty's terms for at least six more months during negotiations. Russian Foreign Minister Lavrov indicated a willingness to engage in security discussions.

The Russian Armed Forces are undergoing a profound transformation, with significant restructuring and modernization efforts from 2024 to 2026. This includes the integration of new unmanned systems, the deployment of advanced weaponry like the S-500 air defense system, and a focus on operational tactics that enhance mobility and effectiveness. The restructuring responds to NATO's expansion and aims to improve combat readiness across all military branches.

2026年2月19日，首相高井真惠宣布了综合国家安全改革，以应对来自中国和朝鲜的日益严重的威胁。2月20日，美国空军与日本航空自卫队在日本海和东海进行联合训练演习，参与演习的有4架B-52轰炸机和3架F-3战斗机。日本计划将国防支出提高到GDP的2%，这标志着其军事政策的重大转变。

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Iran's Foreign Minister Zarif announced that Iran has restricted its missile range to within 2000 kilometers, countering U.S. claims of developing long-range missiles capable of reaching the U.S. He emphasized that the missile program is for defense and deterrence. Zarif criticized U.S. policies as based on misunderstandings and expressed Iran's willingness to engage in respectful dialogue with the U.S. This statement was made on February 25, 2023, in Tehran, prior to indirect negotiations in Switzerland regarding Iran's nuclear program.

Ukrainian President Zelensky signed a decree on February 25, 2023, announcing Ukraine's withdrawal from the CIS joint air defense agreement and 30 other treaties. This decision reflects a significant shift in Ukraine's defense policy and international military relations.

中国于2025年12月在宫古海峡进行军事演习，涉及J-15战斗机，以回应日本首相关于台湾的言论。日本自卫队参与了对这些活动的监视，而美国通过联合军事飞行加强了对日本的承诺。此外，中国对日本实施了影响旅游和文化交流的经济制裁，导致外交紧张局势加剧。

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U.S. Secretary of State Rubio announced that the third round of talks with Iran will take place in Geneva on February 26, 2023, focusing on Iran's nuclear program. Rubio emphasized the serious threat posed by Iran, which is reportedly developing intercontinental ballistic missiles. President Trump reiterated that the U.S. will not allow Iran to acquire nuclear weapons. Meanwhile, Iran's Foreign Minister arrived in Geneva to participate in the discussions.

Zhu Guangya, a prominent figure in China's nuclear weapons development, wrote a public letter in 1949 urging Chinese students abroad to return to contribute to the nation's progress. This letter resonated widely among Chinese students and marked a significant moment in China's nuclear history. Zhu, who dedicated his life to nuclear research, passed away 15 years ago.

美国陆军宣布了一项新的军官留任奖金拍卖，允许符合条件的军官竞标留任奖金。竞标从每月100美元开始，陆军将根据提交的竞标设定市场清算奖金率。该计划旨在留住各专业领域的高级技术专家，排除飞行员，延长六年任期。

中国在2024年珠海航展上揭晓了白帝（Baidi）第六代战斗机的模型，但该项目自此陷入沉寂，没有进一步的发展。J-20和J-35A战斗机正在取得进展，显示出真正的军事能力，而白帝主要作为一种宣传工具，表明中国在第六代技术竞赛中的雄心。

U.S. Vice President Vance announced that evidence indicates Iran is attempting to rebuild its nuclear program following U.S. airstrikes in June. On February 25, 2023, President Trump claimed that Iran has developed missiles capable of threatening Europe and U.S. bases. In response, Iran's Foreign Ministry labeled the U.S. accusations as falsehoods.

The U.S. government, represented by Special Envoy Robert Malley, announced on February 25, 2023, that any future nuclear agreement with Iran must be indefinite and without expiration clauses. Iran's Foreign Minister indicated a willingness to negotiate a better agreement that ensures the peaceful nature of its nuclear program. U.S. officials reiterated their commitment to preventing Iran from obtaining nuclear weapons, favoring diplomatic solutions while keeping other options available.

Dmitry Peskov stated that a meeting between Russian and Ukrainian leaders is possible, provided there is thorough preparatory work. He criticized the Ukrainian government's current actions as focused on financial gain rather than peace. Peskov affirmed that President Putin's invitation for President Zelensky to visit Moscow remains valid.

U.S. Vice President expressed hope for diplomatic negotiations with Iran on February 26 in Geneva, emphasizing that Iran must not possess nuclear weapons. President Trump indicated a preference for a diplomatic solution but is also considering limited military action if necessary. Recent negotiations have shown progress, and the U.S. is increasing its military presence in the Middle East.

美国参议院已达成协议，重启小企业创新研究计划，该计划对资助为国防部开发技术的小企业至关重要。新立法名为《小企业创新与经济安全法》，旨在重新授权该计划五年，并包括保护美国技术免受外国影响的措施。此决定是在一段时间的资金中断后作出的，该中断影响了国防项目。

乔治·巴顿将军在第二次世界大战后面临政治争议，导致他于1945年10月被解除指挥职务。他与美国当局在去纳粹化政策上发生冲突，并于1945年12月9日发生车祸，导致严重的脊椎受伤。巴顿于1945年12月21日去世，反映了从军事领导转向民事治理的挑战。

退伍军人事务部于2026年2月17日宣布了一项关于基于药物影响的残疾赔偿评估的新规则。在退伍军人团体的强烈反对之后，退伍军人事务部副部长保罗·劳伦斯表示该规则将不会被执行。该规则目前处于‘冻结’状态，退伍军人事务部正在收集公众意见，官员和退伍军人对其可能对福利产生的负面影响表示担忧。

美国国防部正在应对自然灾害对军事设施的影响，过去十年已造成超过150亿美元的损失。佛罗里达州的廷德尔空军基地仍受到迈克尔飓风的影响，预计恢复工作将持续到2027年。报告强调了韧性规划中的差距，并建议改善数据收集和灾后恢复工作的指导。

美国空军因A-10雷电II在现代空中防御系统中日益脆弱以及战略转向先进飞机而决定退役A-10。这一决定引发了对近距离空中支援能力可能出现缺口的担忧，因为目前没有直接的替代品。批评者强调A-10在低强度冲突中的独特有效性，强调需要一个合适的继任者以维持在争夺环境中的作战效能。

2012年，在艾尔森空军基地进行的一次训练演习中，德国空军第74战斗机联队的飞行员与美国F-22猛禽进行了模拟空战。台风战斗机成功对F-22进行了多次模拟击杀，而F-22由于外部油箱的影响，机动性受到限制。这次演习突显了飞行员技能和战术意识在空战中的重要性。