特朗普总统执政仅19个月，美国便陷入了严峻的战略危机。美军因「史诗怒火」行动对伊朗开战而严重透支，远程武器和防御导弹库存大量消耗，海军疲惫不堪。军事能力与全球承诺之间的差距持续扩大，面对俄罗斯、伊朗、朝鲜及中国等修正主义势力的协调挑战，美国已陷入战略资不抵债的困境，若西太平洋爆发重大冲突，美军面临战败的严重风险。
特朗普对美国同盟体系的管理失当加剧了信誉危机。波斯湾盟友对其反复无常的伊朗政策感到困惑，欧洲盟友因其领土勒索和抛弃威胁而不安。在亚太地区，政策同样混乱：美方先敦促日本明确台海立场，随后又表示不满；对台军售被延迟并沦为对华谈判筹码；与韩国的军演也遭到降级。这一切都在向对手传达美国不会保卫盟友的信号。
美国的脆弱窗口为修正主义政权创造了机会。伊朗以军事升级威胁牵制特朗普，普京加强对欧洲的混合攻击并可能在波罗的海尝试有限领土行动，中国则加大对菲律宾的海上压力并为封锁台湾做准备。尽管特朗普提议大幅增加军费并重建武器库存，但成效需数年才能显现。加之2026和2028年大选可能引发的政治动荡，美国可能在整个特朗普任期乃至更长时间内深陷这一全球性危险区。
President Trump's first 19 months have plunged the United States into severe strategic peril. Operation Epic Fury against Iran has depleted long-range weapons and defensive missile stocks, exhausted the Navy, and left the Pentagon dangerously exposed. The widening gap between America's military capacity and its global commitments—compounded by coordinated challenges from Russia, Iran, North Korea, and China—means that if a major conflict erupted in the Western Pacific today, America's overstretched forces would face a serious risk of defeat.
Trump's mismanagement of alliances has deepened a parallel crisis of credibility. Gulf allies are bewildered by his erratic Iran policy, European partners are shaken by territorial extortion attempts and abandonment threats, and the supposed Pacific pivot has devolved into incoherence—pressuring Japan on Taiwan only to rebuke its response, delaying arms sales to Taipei as leverage with Beijing, and downgrading exercises with South Korea. Rather than deterring adversaries, these actions signal that America may not defend its friends when it matters most.
America's window of vulnerability has become a window of opportunity for revisionist powers. Iran threatens military escalation to maintain its grip on the Strait of Hormuz, Putin intensifies hybrid attacks on Europe and may probe NATO's resolve in the Baltics, and China ratchets up maritime coercion against the Philippines and Japan while preparing for a potential Taiwan blockade. Although Trump has proposed major defense budget increases and emergency weapons replenishment, tangible results would take years to materialize. Combined with potential domestic political upheaval surrounding the 2026 and 2028 elections, the United States may remain trapped in this global danger zone for the foreseeable future.