Original: Following the loss of the Bismarck in 1941 , with Allied air superiority threatening the remaining battlecruisers in French Atlantic harbours , the ships were ordered to make the Channel Dash back to German ports .
Simplified: Following the loss of Bismarck in 1941 , with Allied air superiority threatening the remaining battlecruisers in French Atlantic harbours , the ships were ordered to go back to German ports .