On a quiet day with little fanfare befitting the moment, the United States completed its military withdrawal from Iraq, more than two decades after the 2003 invasion that toppled Saddam Hussein and unleashed an insurgency, a civil war, and eventually the rise and fall of the Islamic State. Donald Trump called it a "victory" over ISIS. The more honest description is a retreat dressed as a triumph, the latest entry in a long ledger of imperial withdrawals that leave behind not peace but improvisation.

The headline event is simple enough: after 12 years of the US-led coalition mission against ISIS, American forces are gone, and Baghdad now owns the job of balancing its own security institutions against Iran-backed militias without a superpower's counterweight. But the deeper story, the one historians will write about, is what is rising in the vacuum: a "post-American" security architecture in which Saudi Arabia pivots toward Pakistan and Turkey, recalibrates its relationship with the UAE, and the region as a whole begins building its own umbrella because Washington's is folding up.

The Pattern of Departing Empires

Anyone who has studied the slow unwind of British power in South Asia will recognize this moment immediately. Rajmohan Gandhi, writing about Punjab's Unionist Premier Khizr Hayat Khan in the final years of the Raj, offered a line that deserves to be carved above the entrance of every foreign ministry: "empires do not last forever, and departing empires do not reward loyalty." Khizr had served the British faithfully, and in Simla in 1945, during the final constitutional talks, he was the only leader entitled to a car while Gandhi, Jinnah, Nehru and Azad walked or took rickshaws. The honor, Gandhi's biographer noted, "merely underscored his humiliation." Within two years the empire Khizr had served was gone, and Punjab itself was torn apart in partition violence that the departing British did little to prevent.

Iraq's political class, and indeed the wider network of Gulf monarchies and Kurdish authorities who built their security postures around the assumption of permanent American presence, might study that lesson carefully. The US training, basing rights, and counter-terrorism partnerships offered over two decades were real, but they were never a permanent commitment. They were, like British patronage in Punjab, contingent on strategic convenience. When convenience shifted, as it did under both the Obama-era drawdown and now Trump's declared "victory lap," the clients were left to manage consequences the patron no longer wished to underwrite.

Afghanistan Was the Rehearsal

We do not need to reach back a century for the clearest precedent. The 2020 US-Taliban deal signed in Doha stipulated a full NATO withdrawal by May 2021 in exchange for Taliban counter-terrorism promises^[1]. The United States dramatically reduced air support to Afghan government forces even before the final withdrawal, hollowing out the very security apparatus Washington had spent twenty years building^[1]. The Afghan state collapsed within weeks of the final American departure in August 2021, a scenario that should haunt anyone now reassuring Baghdad that Iraqi forces are "ready."

Iraq is not Afghanistan. Its army is better resourced, its political system more institutionalized, and critically, Iran's proxy network there operates as a parallel power structure embedded in the state rather than an insurgency trying to topple it. But the structural problem is identical: a security architecture built around the presence of a foreign patron does not easily convert into self-sufficient sovereignty the moment the patron leaves. June 2027, when Baghdad must show whether its institutions can hold the line against Iran-aligned armed groups without American backstop, is the date analysts are now watching as the real test of whether this transition succeeds or collapses the way Kabul did.

Regional Powers Learn to Hedge, Not Trust

What makes this moment genuinely different from Afghanistan, and perhaps more consequential, is that the regional powers are not waiting passively for American protection to evaporate. Saudi Arabia is actively constructing alternatives, pivoting toward security partnerships with Pakistan and Turkey while reassessing its ties with the UAE. This is not nostalgia for American power; it is hedging against its absence, a rational response from states that have watched Washington's commitments prove negotiable in Doha, in Kabul, and now in Baghdad.

There is a historical echo here too, though an older and more ambiguous one. In October 1831, Governor-General Bentinck met Maharaja Ranjit Singh at Ropar with great ceremony, warning him not to expand into Sindh. A year later, Ranjit Singh's seal was obtained on a treaty that formally closed off his ambitions there, a capitulation some Sikhs deeply resented. Ranjit Singh was the dominant regional power of his day, yet he operated within boundaries set by a stronger outside force, and he understood, as Riyadh understands today, that alliance with the paramount power came with real constraints on autonomy. The difference now is that no single paramount power is offering Riyadh those boundaries, or that protection, with any reliability. Saudi Arabia is not negotiating limits with Washington; it is building its own coalition because Washington's umbrella has proven unreliable, from the 2019 Abqaiq attacks that went unanswered to today's Houthi missile campaigns against Red Sea shipping.

This is the emergence of multipolarity within a sub-region, not unlike how Maratha chiefs, Sikh confederacies, and Mysore's rulers each tried to build independent power bases as Mughal authority faded in the eighteenth century, only to find that disunity among themselves was their greatest vulnerability. Bipin Chandra's history of the British conquest notes that when Sindhia and Bhonsle fought the East India Company, Holkar stood aside, and when Holkar later took up arms, Bhonsle and Sindhia "nursed their wounds" rather than unite. The lesson was not lost on Arthur Wellesley, who exploited those divisions to defeat the combined Maratha armies at Assaye in 1803. A fragmented Middle East, with Saudi Arabia, Turkey, Pakistan, the UAE, and Iran all pursuing separate and sometimes contradictory security logics, risks the same vulnerability: regional powers so focused on hedging against each other that none can collectively address the common challenges of Iran's nuclear ambitions, Houthi expansion, or ISIS remnants.

The Nuclear Shadow

Indeed, the most dangerous variable in this new order is Iran's nuclear calculus. Reports suggest Tehran is debating withdrawal from the Non-Proliferation Treaty as its program enters what is described as a critical phase, with satellite imagery showing activity at known nuclear sites. An Iran emboldened by the absence of American ground forces in Iraq, and possibly freed from non-proliferation constraints, is a different strategic animal than the Iran that operated under the shadow of 150,000 US troops next door. The Saudi-Pakistan security pivot cannot be separated from this nuclear anxiety; Pakistan is, after all, already a nuclear power, and speculation about nuclear-sharing arrangements or deterrence guarantees between Riyadh and Islamabad is no longer the fringe theory it was a decade ago.

Caution Against Overcorrection

None of this means American withdrawal was wrong, or that permanent occupation was ever a viable alternative. Mahatma Gandhi's decision to suspend the Non-Cooperation Movement after the Chauri Chaura killings in February 1922, when a mob burned a police station and killed twenty-two constables, is instructive in a different way. Gandhi concluded that a movement built on violence it could not control was not worth the moral and strategic cost of continuing, even though the decision stunned his own movement and drew a furious seventy-page protest from Lajpat Rai. Sometimes withdrawal, however costly to credibility in the short term, is the more honest course than persisting in a commitment whose foundations have rotted.

Washington's two-decade Iraq project always rested on contradictions: fighting terrorism while empowering Iran-aligned Shia parties, promoting democracy while propping up fragile coalitions, and preaching sovereignty while stationing troops indefinitely. The American withdrawal is not inherently the mistake; the mistake, if there is one, would be believing that a twenty-year presence could be substituted overnight with twenty years of institutional resilience that was never actually built. The real test is not whether America leaves, but whether what follows, a messy, multipolar, regionally-constructed security order, can actually hold.

What History Suggests

The honest answer, drawn from a century and a half of imperial exits, is "not easily, and not without bloodshed." Partition followed British withdrawal from India by mere months. State collapse followed American withdrawal from Afghanistan within weeks. The Maratha confederacy's internal rivalries opened the door to total British conquest by 1818. Iraq, and the wider Middle East now improvising a Saudi-Pakistan-Turkey security architecture, have one advantage those precedents lacked: foreknowledge. The region can see the pattern. Whether it has the unity to defy it is the open question of the next five years.

Sources

2020–2021 US troop withdrawal from Afghanistan