Lonely Courage: The true story of the SOE heroines who fought to free Nazi-occupied France

On 18 June 1940 General de Gaulle broadcast from London to his countrymen in France about the catastrophe that had overtaken their nation - the victory of the invading Germans. He declared: 'Is defeat final? No! ...the flame of French Resistance must not and will not be extinguished'.

The Resistance began almost immediately. At first it was made up of small, disorganised groups working in isolation. But by the time of the liberation in 1944 around 400,000 French citizens, nearly 2 per cent of the population, were involved.

The Special Operations Executive (SOE) set up by Winston Churchill in 1941 saw its role in France as helping the Resistance by recruiting and organising guerrilla fighters; supplying and training them; and then disrupting the invaders by any means necessary. The basic SOE unit was a team of three: a leader, a wireless operator and a courier. These teams operated in Resistance circuits and the agents were given random codenames. The aim of this work was to prepare for the invasion of Europe by Allied forces and the eventual liberation of France. It was soon decided that women would play a vital role.

There were 39 female agents recruited from all walks of life, ranging from a London shop assistant to a Polish aristocrat. What linked them was that they knew France well, were fluent in French and were prepared to sacrifice everything to help defeat the enemy. The women trained alongside the men, learning how to disappear into the background, how to operate a radio transmitter and how to kill a man with their bare hands. Once trained they were infiltrated behind the lines by parachute or tiny aircraft that could land in remote fields. Some of the women went on to lead thousands of Resistance fighters, while others were arrested, brutally interrogated and sent to concentration camps where they endured torment and death.

Lonely Courage tells their story and sheds light on what life was really like for these brave women who tumbled from the sky.