The biggest gathering of Dakotas in 75 years. More than thirty Douglas DC-3 Dakotas and C-47 Skytrains, as well as hundreds of paratroopers, will mark 75 years since the D-Day invasion heralded the liberation of Western Europe. Daks from as far away as the USA, Canada, and Australia will join others from Europe. In the first phase, the aircraft will gather at the UK's Duxford Airfield from 2-5 June. On 5 June, some 250 men and women in WW2 style uniforms will…