United States Secretary of Defense Pete Hegseth has been discussing key foreign policy issues for Washington at a defence summit in Singapore. On Saturday at the Shangri-La Dialogue, Hegseth commented on America’s main rival , China, as well as Iran, NATO and Taiwan — a major point of contention between Washington and Beijing. Recommended Stories list of 3 items list 1 of 3 How Xi-Trump summit failed to yield Iran war breakthrough list 2 of 3 US pausing $14bn arms sale to Taiwan due to Iran war, navy chief says list 3 of 3 Why is Trump deploying 5,000 troops to Poland? end of list The US and Israel launched their war on Iran in late February, rattling global markets, triggering an energy crisis and causing shortages of critical US munitions, including Terminal High Altitude Area Defense (THAAD) interceptors, which cost about $12m each.…