International mediators have put forward a 45-day ceasefire proposal aimed at de-escalating tensions between the United States and Iran, according to multiple reports published Monday. The proposal represents a significant diplomatic effort to prevent the standoff from tipping into open conflict, with negotiations still at an early stage.

A central concern driving the urgency of the talks is the Strait of Hormuz, the narrow waterway through which roughly 20 percent of the world's oil supply passes. Any disruption to the strait would have immediate and severe consequences for global energy markets, and the ceasefire proposal is explicitly linked to keeping the route open for international shipping.

President Trump issued pointed warnings to Iran over the strait, using unusually direct language to signal that the United States would not tolerate any closure or interference with passage through the waterway. The warnings underscored the administration's willingness to apply maximum pressure even as diplomatic channels remain active.

Financial markets have been closely tracking the situation, with energy prices and broader equity indices showing sensitivity to developments in the U.S.-Iran standoff. Analysts noted that a successful ceasefire agreement could provide short-term relief to oil markets, while a breakdown in talks could send prices sharply higher.

It remains unclear whether Iran has formally responded to the mediators' proposal. Officials familiar with the discussions have cautioned that significant gaps remain between the two sides, and that the 45-day framework is intended as a starting point for broader negotiations rather than a final settlement of underlying disputes.