Paris in the month of May was in full aphrodisiac bloom. The girls were swinging along the boulevards in their short, flowery skirts, their hair flowing loose behind them. On the radio, the singer Tino Rossi - France's answer to Rudolph Valentino - belted out his latest romantic favourite. But a few short weeks later, on June, 14, 1940, the German army marched into the capital and occupied it for four years. France has never forgotten its humiliation - or its bewilderment - in having to adjust to a life of close proximity to the old enemy, with all the...