In February 2026, Israel launched extensive airstrikes on Iran under Operation Roaring Lion, quickly joined by US forces in Operation Epic Fury. The campaign targeted Iranian nuclear facilities, military infrastructure, air defenses, and leadership, resulting in the death of Supreme Leader Ali Khamenei and significant degradation of Iran's capabilities, according to US and Israeli officials. What began as a preventive strike escalated into a 40-day conflict involving Iranian missile barrages, closure of the Strait of Hormuz, attacks on US bases and Gulf states, and billions in economic disruption. By early April, a two-week ceasefire was announced, mediated by Pakistan under the Islamabad Accord, requiring Iran to reopen the vital shipping chokepoint. Vice President JD Vance, who played a key role in the final hours of negotiations, described it as a 'fragile truce' while urging Iran to negotiate in good faith or face President Trump's impatience.[1][2]

Mainstream narratives from the Trump administration and Israeli officials frame this as a decisive victory: Secretary of Defense Hegseth declared every objective met, with Iran's navy 'at the bottom of the sea,' its air defenses neutralized, and nuclear program set back. Trump called it 'very complete,' claiming prevention of wider war. Yet Iran portrays the outcome as a 'historic defeat' of the US and Israel, asserting Washington accepted key elements of its 10-point proposal involving sanctions relief and regional de-escalation. Both sides claim victory, but the rapid pivot to ceasefire without regime change, amid high US costs ($18 billion+ reported), American casualties, and global oil shocks raises heterodox questions mainstream outlets sidestep.[3][4]

Going deeper, this conflict exposes structural US foreign policy failures. Israel initiated strikes during ongoing US-Iran nuclear talks, pulling Washington into a war that entangled it in attritional fighting despite superior technology. Iran's ability to disrupt global energy flows via Hormuz, sustain missile volleys, and leverage narratives of resistance—despite losing key leaders and infrastructure—suggests the limits of 'shock and awe' in a multipolar age. Pakistan and Chinese diplomatic involvement in mediation hints at eroding US monopoly on regional brokerage. Vance's elevation as negotiator cements his role but also underscores a shift: the US, facing domestic protests and congressional pushback, settled for a pause rather than total dominance. This aligns with broader patterns of overextension seen in prior Middle East engagements.

The ceasefire's fragility, as Vance repeatedly warns, belies deeper power shifts. Iran emerges with its regime intact, a strengthened 'axis of resistance' narrative, and potential concessions that could accelerate dedollarization trends in oil trade. For the US, it risks signaling retrenchment—downplayed in victory speeches but evident in the acceptance of a temporary truce brokered partly through third parties. This episode may mark an inflection toward contested hegemony, where tactical military successes cannot mask strategic exhaustion against resilient adversaries backed by rival powers. As global attention turns to whether talks yield lasting deals or renewed fighting, the Vance-brokered pause demands scrutiny beyond triumphalist headlines: has American unipolarity in the Gulf reached its twilight?