How do you settle a rather sizeable bill for your milk delivery? If you are a cash-strapped superpower the answer is, apparently, to offer up a pair of fighter jets and a nuclear submarine as payment. The extraordinary offer was made by Russia to New Zealand in 1993, a new book reveals. After the collapse of the Soviet Union, Russia was struggling to pay the $100m it owed New Zealand for a range of imported dairy products. In a meeting with Russian officials to thrash out payment terms, Jim Bolger, then New Zealand prime minister, was "absolutely stunned" to be...