US President Donald Trump’s latest ultimatum to America’s allies underscores how trade has become a central weapon in the struggle over Ukraine. By demanding that every Nato member halt purchases of Russian oil and impose tariffs of up to 100 per cent on China, he has fused economic coercion with the promise of military de-escalation. His message is stark: follow my plan and the war will end quickly; refuse and the conflict will drag on. At first glance the logic seems simple. Russian oil exports remain the Kremlin’s main source of hard currency. China and India have stepped in as key buyers since Europe began phasing out its own imports, cushioning Moscow from Western sanctions.
Punish these buyers with steep tariffs, Mr Trump argues, and the cash lifeline sustaining Russia’s invasion will snap. Yet the strategy is far more complicated than the rhetoric suggests. Europe has already slashed its dependence on Russian energy from nearly half of its gas imports in 2022 to a fraction today. But persuading holdouts such as Turkey to stop buying Russian crude will not be easy, and some European economies still rely on limited Russian supplies. Forcing them to move faster risks both political backlash and economic disruption. The call for tariffs on China is equally fraught. Such measures would deepen the global trade war, hit European consumers, and invite retaliation from Beijing, which could in turn tighten its own partnership with Moscow.
Even Washington’s own relationships are tangled. The United States recently levied a 50 per cent tariff on Indian goods, half of it justified as punishment for Indian purchases of Russian oil, even as Mr Trump courts New Delhi as a counterweight to China. India is unlikely to abandon cheap Russian energy because of tariff threats while its own growth depends on affordable fuel. By shifting the burden of enforcement to allies, Mr Trump signals both urgency and limitation. America cannot on its own choke off Russia’s revenue, yet it remains the indispensable power in any coalition. Europe must weigh the costs of compliance against the risk of a prolonged war.
History shows that sanctions and tariffs rarely deliver quick victories. They work best as part of a sustained, multilateral effort, not as a one-off shock. Even if every Nato member followed Washington’s lead tomorrow, Russia’s economy ~ already re-oriented toward Asia ~ would adapt. The real challenge is not simply starving Moscow of revenue, but sustaining political will across democracies whose voters will feel the costs of prolonged economic warfare. Economic pressure can complement military aid, but it is no substitute for a coherent strategy. Tariff ultimatums may generate headlines and force allies to take sides, yet they could also fracture the very unity needed to contain Russian aggression. The danger is that in seeking to starve Moscow, the West ends up starving itself of cohesion ~ and still leaves the battlefield unchanged.