The US dollar index fell from a 1.25-month high on Monday, closing down 0.25 percent.

The decline followed reports that the United States proposed a temporary waiver of sanctions on Iranian oil, as reported by Detik Finance.

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The currency reversed its overnight gains after the policy reports and subsequent comments from US President Donald Trump regarding military actions.

The dollar later recovered from its lowest levels as a retreat in equity prices stimulated liquidity demand for the safe-haven currency.

Geopolitical Tensions and Market Reactions

Geopolitical tensions initially provided upward momentum for the greenback earlier in the session.

Investor demand for safe-haven assets grew following statements by the US administration concerning international relations and military deployments in the Middle East.

President Trump issued further warnings regarding the urgency of a diplomatic resolution.

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"Better get moving FAST on a peace deal, or there won't be anything left of them," he said.

Additional market support stemmed from reports by Reuters detailing international military movements.

Pakistan reportedly deployed 8,000 troops, a fighter jet squadron, and an air defense system to Saudi Arabia under a mutual defense pact.

Economic Indicators and Rate Cut Expectations

Domestic economic indicators showed some resilience.

The May NAHB housing market index rose by three points to 37, outperforming market expectations of no change at 34.

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Meanwhile, swaps markets discounted the odds of a 25 basis point rate cut at the upcoming Federal Open Market Committee meeting on June 16-17 to zero percent.

In currency pairs, the euro rebounded from a 1.25-month low to finish up 0.22 percent against the dollar, driven by short covering.

However, Eurozone gains were capped as crude oil prices surged over three percent to a three-week high, raising energy import concerns for the region.

Swaps discounted an 88 percent chance of a 25 basis point rate hike by the European Central Bank on June 11.

The dollar rose 0.09 percent against the Japanese yen, which hit a two-week low.

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The decline followed statements from Japanese leadership regarding fiscal interventions to manage rising commodity costs linked to Middle East conflicts, alongside pressure from higher US Treasury note yields.