USD/JPY Breaks April Uptrend at 155.50 on Israel-Iran Safe-Haven Flows

USD/JPY plummeted 1.2% to 155.20, breaking below the critical April uptrend line at 155.50 as escalating Israel-Iran tensions triggered massive safe-haven flows into the Japanese yen. The pair's sharp decline accelerated after breaching the key technical support, with momentum indicators turning decisively bearish. WTI crude oil surged 3.5% to $87.40 per barrel on supply disruption fears, adding to risk-off sentiment that typically benefits the yen. The break of the two-month ascending trendline signals a potential trend reversal, with immediate support at 154.80 (50-day moving average) and stronger support at 154.00 (April low). RSI has dropped to 42, suggesting further downside room before oversold conditions emerge. Traders should watch for any diplomatic breakthroughs that could spark a relief rally, though the technical damage suggests rallies toward 156.00 may attract fresh selling pressure in the near term.