German high-speed building under constant attack

A special strategy enabled a construction speed that would not have been possible in conventional shipyards under constant attacks. #documentary #ships #boats #shipyard ---- This channel offers you full episodes of high quality documentaries. Enjoy and don't forget to subscribe :) ---- Other channels you might be interested in: criminals and crimefighters: https://www.youtube.com/channel/UCYuXyzwA_w4-c1FJrqOnR0A space and science: https://www.youtube.com/channel/UC1-7mA0mKsCTyCMG4JNO3EQ