NEW YORK, March 9 : The U.S. dollar strengthened against most currencies on Monday as surging oil prices, driven by the U.S.-Israeli war on Iran, pushed investors toward the safety of the greenback on fears a protracted conflict could disrupt global energy supplies and weigh on economic growth. The euro was last down 0.3 per cent to $1.1583, after earlier touching a more than three-month low of $1.1505. The dollar was up 0.3 per cent against the Japanese yen to a six-week peak, while sterling