For three decades after The Cold WarWashington operated under a dangerous assumption: that military supremacy could infinitely compensate for diplomatic fatigue.
The United States possessed the most advanced armed forces in the world, unrivaled naval reach, and a financial system capable of weaponizing sanctions against opponents thousands of miles away. From the Balkans to Baghdad, this power often created the appearance of control. But appearances in geopolitics have a short lifespan.
The last confrontation with Iran has exposed something that American policymakers have resisted accepting for years. The era of unchallenged US primacy is coming to an end – not because America has suddenly weakened, but because the global power structure has changed faster than Washington’s strategic imagination.
What makes this realization particularly painful is that the erosion of American leverage has not been largely imposed by enemies. Rather, most of it is self-inflicted. Great powers, history shows, are rarely brought down by a single defeat.
They fall by mistaking military capacity for strategic wisdom. Imperial Britain learned this later Suez in 1956. The Soviet Union taught it to Afghanistan. The US now risks learning the same lesson in the Persian Gulf.
The confrontation with Iran is demonstrating a wonderful paradox. America can still inflict great damage, yet it struggles to achieve decisive political results. This distinction is important because military victories they are tactical events while political victories define history.
Why infinite pressure produced diminishing returns
Washington’s Iran policy has oscillated between coercion and fantasy. An administration breaks deals in pursuit of “maximum pressure.“
Another attempts partial diplomacy while maintaining the sanctions architecture. Then comes another round of threats, military deployments, cyber operations and economic restrictions. But Washington’s basic assumption never changes: eventually, Tehran will crack under pressure.
However, states under constant pressure often adapt rather than capitulate. Iran’s survival strategy resembles what smaller powers throughout history have done when faced with stronger adversaries. Vietnam he did it against the US.
Hezbollah did it against Israel in 2006. Ukraine, despite very different circumstances, is using similar principles against Russia. The objective is not necessarily outright victory. It is denial, making the cost of dominance too high for the strongest actor to sustain politically.
This is where Washington appears blocked. Despite overwhelming military advantages, the US is finding that geography, asymmetric tactics, regional alliances, and domestic political anger and fatigue can neutralize conventional superiority.
Strait of Hormuz only remains one of the most critical economic points in the world. Approximately one fifth of global oil consumption passes through it. Even limited volatility there could send shockwaves through global markets. This creates leverage for Tehran that no package of sanctions can completely erase.
American strategists often talk as if energy flows only from aircraft carriers and GDP figures. But geopolitical leverage can come out of the rift. A weaker actor capable of creating uncertainty within the global economy possesses a form of deterrence of its own.
The uncomfortable reality is that Washington’s approach has often reinforced the very behavior it hoped to eliminate. Decades of sanctions did not bring about the collapse of the regime.
They urged Iran to deepen ties with China, expand regional proxy networks and accelerate domestic military adjustment. Pressure became the engine of resistance.
Multipolarity is no longer a theory
For years, discussions about a “multipolar worldIt seemed abstract academic. Policymakers in Washington still behaved as if America could unilaterally orchestrate global outcomes, while competitors remained secondary players. This world, by all accounts, no longer exists.
China’s growth is not simply the result of Beijing’s economic planning or industrial capacity. It has also been accelerated by continued American strategic overreach. Only the war in Iraq cost trillions of dollars while shifting attention away from Asia over the decades, China was consolidating manufacturing dominance, technological growth, and global infrastructure influence.
History offers a cruel irony here. The US won the Cold War in part because the Soviet Union was exhausted in volatile geopolitical competition. However, Washington increasingly risks reproducing the same mistake through permanent military engagements and endless confrontations.
Meanwhile, other countries are adapting accordingly. Saudi Arabia now balances the relationship between Washington and Beijing. India buys Russian oil deepening ties with the US.
Turkey pursues an aggressively independent regional policy despite NATO membership. Even America’s longtime allies increasingly defend rather than automatically align. This is what decline in priority looks like in practice – not dramatic collapse, but gradual diversification.
the phrase “indispensable nation“, once popular in American foreign policy circles, now sounds less like faith and more like nostalgia. Nations no longer assume that Washington’s approval is necessary before pursuing their interests.
Iran realized this earlier than many in Washington. Years of sanctions pushed Tehran eastward economically and strategically. China became a lifeline. Russia became a partner of convenience.
The BRICS bloc expanded. Alternatives to the dollar, while still limited, gained momentum. None of this means that the US will be displaced as the world’s dominant power. But this means that the costs of coercive unilateralism are rising rapidly.
Nuclear Temptation and the Failure of Deterrence Theology
One of the most dangerous consequences of prolonged instability is the growing belief that nuclear weapons are the only reliable guarantee of sovereignty.
This argument has gained traction not only in Iran, but globally. North Korea’s nuclear regime has survived. Libya, on the other hand, disarmed and collapsed spectacularly. Ukraine surrendered its Soviet-era nuclear capabilities decades ago and later faced invasion.
The lesson many states learn is brutally simple: fragility requires external intervention. But nuclear deterrence is not the universal insurance policy that a growing number of its advocates imagine.
Pakistan and India both have nuclear arsenals, but continue to operate under chronic instability. Israel’s undeclared nuclear capability has not prevented recurring regional conflicts. Nuclear weapons may prevent total invasion, but they do not eliminate insecurity, proxy war, economic stagnation, or domestic political dysfunction.
The deeper problem is psychological. Once enough states conclude that international law cannot guarantee sovereignty, nuclear proliferation becomes an increasingly rational response. This isn’t just a Middle Eastern problem – it’s a global problem.
And coercive diplomacy accelerates this logic. When powerful states appear unwilling to negotiate in good faith, weaker states look for irreversible obstacles. The tragedy is that each new proliferation crisis then becomes an excuse for further militarization, creating a cycle with no sustainable endpoint.
Diplomacy requires humility, not slogans
The most striking weakness in modern American foreign policy is not military overreach, but diplomatic arrogance.
Too often, Washington treats negotiations with adversaries as exercises in dictation rather than compromise. However, lasting agreements require mutual concessions, even between unequal powers.
The JCPOA nuclear deal he succeeded with Iran precisely because he accepted this reality. It was imperfect, but it created verification mechanisms, reduced tensions and prevented immediate escalation.
Her downfall indicated something greater than partisan dysfunction. It revealed how fragile diplomacy becomes when domestic political theaters dominate strategic continuity.
Sanctions relief, regional security guarantees, and international enforcement mechanisms involving other major powers such as China and Russia are almost certainly necessary for any lasting settlement with Iran.
That prospect will make many in Washington uncomfortable because it implies sharing responsibility in a world no longer organized around unilateral American command. But diplomacy in a multipolar era cannot work otherwise.
The US still has major advantages: military reach, technological innovation, cultural influence and financial power still unmatched by any rival coalition. However, strength without restraint becomes self-destructive.
Empires often assume that credibility depends on a demonstration of force. In reality, credibility depends on demonstrating judgment. Therefore, the lesson that emerges from the confrontation with Iran is bigger than the Middle East itself.
America’s greatest strategic challenge is no longer defeating enemies abroad. It is psychologically adapting to a world where dominance has limits. History suggests that great powers that recognize those limits early on adapt successfully. Those who deny them usually learn the hard way.
MA Hossain is a senior journalist and international affairs analyst based in Bangladesh.
