The Flemish Farm is a 1943 British war film, based on an actual wartime incident. Released during the war, and used as a propaganda tool to support the allied war effort, the film begins with the caption
In May 1940, as German forces sweep across France and Belgium, the remains of the Belgian Air Force are bottled up near the Flemish coast, and billeted at a farm in the Flemish countryside. Ordered by their government to surrender, the commander gives orders that the regimental colours be honorably buried, rather than surrendered to the invaders. The few pilots with serviceable aeroplanes fly to England to join the Allied airforces, while those remaining are forced to surrender.Six months later, after fighting in the Battle of Britain, Jean Duclos, now a squadron leader, is persuaded by a fellow officer to return with him to retrieve the colours. The latter is killed before he can leave and Duclos persuades the authorities to parachute him into Belgium. He contacts his former commanding officer, now living as a civilian in Ghent and secretly operating a resistance group feeding intelligence to the Allies. Provided with a false identity and a cover story, Duclos returns to the farm, where his late colleagues wife and child still live. She is initially unwilling to reveal where the colours are buried, believing that they arent worth dying for. But she relents and the colours are retrieved. ........
Source: Wikipedia