When he came into office, British Prime Minister Keir Starmer declared that the first duty of a leader is to keep the country safe. His defence secretary, John Healey, resigned this week, telling his boss that he was making the country less safe. It was a stinging letter, claiming Sir Keir was unable to make the financial commitments needed to defend the country against the spectre of a Russian attack. A second defence minister, Al Cairns, also resigned for the same reasons.They had both seen...