美伊战争暴露并加剧了多极化世界的危险：削弱美国与盟友关系，壮大中俄扩张势力，加速全球动荡，使美国陷入1930年代以来最孤立脆弱的境地。战争间接助长俄罗斯军费收入，削弱乌克兰防御能力，同时消耗美制防空武器库存，令欧洲盟友面临更严峻战略困境。即便战胜伊朗，若导致美国同盟体系崩溃，胜利也将失去意义。

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总结：

1. 乌克兰与海湾国家协议引发地缘政治角力

• "Russian oil money vs Gulf oil money now" (woggy)
• "Gulf states are questioning what they get out of America's security guarantee" (jmyeet)

2. 美国军事能力受到质疑

• "The US can't sustain a long campaign...burned through ~850 Tomahawks in weeks" (adventured)
• "Iran shows the limits of US present endurance capabilities" (adventured)

3. 中国将从中美对抗中获益

• "China is plainly seeing the US can't sustain a long campaign" (adventured)
• "China simply has to do nothing...while they're making a historic mistake" (jmyeet)

4. 美国中东政策批评

• "Islamic militants would have little interest in attacking...if US not involved" (jmyeet引用)
• "The surest way of avoiding Islamist terrorist attacks would have been to get out" (jmyeet)

5. 美国全球影响力衰退

• "This administration has done more to destroy American's global power" (jmyeet)
• "America's more of a rogue and less super than it was a year ago" (fuzzfactor)

6. 欧洲立场不确定性

• "Europe is questioning its position of being America's dog" (jmyeet)
• "Will we see EU apply sanctions?" (NooneAtAll3)

不同观点： - 有评论认为美国仍具潜力："The US could put up a big fight at full war mobilization" (adventured) - 也有评论指出新保守主义影响："Robert Kagan is...architect of PNAC" (12971h)