Downing Street has insisted that the sovereignty of the Falkland Islands is “not in question” following reports that the US could review Britain’s claim as revenge for a lack of support in the Iran war. An internal Pentagon email set out options for Mr Trump’s administration to punish Nato allies for refusing to join the US-Israeli strikes against Iran. The memo, first reported by Reuters, suggests reassessing US diplomatic support for “imperial possessions” such as the Falklands. On Friday morning, No 10 insisted that “sovereignty rests with the UK”, adding that Britain will not be “pressured on the Iran war”.…