What to know

• The US, which had been using the Royal Air Force Fairford in southwest England for its war in Iran, abruptly withdrew all its B-1 bombers from the site last week after the mysterious episode on September 27S1
• Britain's government Monday accused Iran's Revolutionary Guards of being behind a major scare at a UK airbase used by the United States, as allies including Washington warned Tehran against hostile acts. UK Prime Minister Andy Burnham told the British parliame...S2