Iran is seen readying major exercise as tensions with U.S. simmer

By Phil StewartWASHINGTON (Reuters) - The United States believes Iran is preparing to carry out a major exercise in the Gulf in the coming days, apparently moving up the timing of annual drills amid heightened tensions with Washington, U.S. officials told Reuters on Wednesday.Iran has been furious over U.S. President Donald Trump's decision to pull out of an international nuclear deal and reimpose sanctions on Tehran.Senior Iranian officials havewarned the country would not easily yield to a ren