<h1>Tariff threats over Greenland and proposed peace board risk undermining trade truce and multilateral ties</h1> A major economy's threat to impose escalating tariffs tied to acquisition demands over a semi-autonomous territory uses trade measures as leverage, risking disruption of an existing transatlantic trade truce; the legal rationale invoked is economic coercion via tariffs, with the operative effect that tariffs would raise costs, undermine investor confidence, and invite proportional retaliatory measures from trading partners. Separately, the administration's proposal to establish an independent peace oversight body seeks to create an alternative multilateral governance mechanism, with the operative effect of contesting traditional UN primacy and complicating diplomatic cooperation.