USD index rose 0.2% to 98.88 as markets await the Fed’s rate decision expected to hold at 3.50‑3.75%.
Safe‑haven demand surged amid escalating US‑Iran tensions, with President Trump signaling a prolonged blockade and possible strikes.
Euro slipped 0.3% to $1.1680 and sterling fell 0.3% to $1.3478, while the yen weakened past the $160 per dollar level.
Bank of Japan and Bank of Canada kept rates steady; analysts warn a hawkish shift if the geopolitical conflict persists.