USD/JPY edges up at the start of a new week, stalling its retracement slide from 158.00, or a two-week top touched in reaction to the BoJ’s dovish rate hike on Friday. Escalating tensions in the Middle East, along with bets for another Fed rate hike this year, lend some support to the US Dollar and the currency pair. Bulls, however, seem hesitant and await further geopolitical developments.