US-Israeli discord over action against Iran went into overdrive Sunday, Jan. 15 when the White House called off Austere Challenge 12, the biggest joint war game the US and Israel have every staged, ready to go in spring, in reprisal for a comment by Israeli Deputy Prime Minister Moshe Yaalon in an early morning radio interview. He said the United States was hesitant over sanctions against Iran's central bank and oil for fear of a spike in oil prices.