Nash's final painting for WAAC was however an extraordinary, imagined scene of a bombing raid on a city. Despite being given access to official reports and accounts from aircrews who had flown on raids to Germany, for the "Battle of Germany", Nash adopted an unconventional abstract approach. Nash explained that it showed a city under attack with a pillar of smoke from burning buildings in the background and the white spheres of descending parachutes in the foreground. The pillar of smoke and the moon were as threatening to the city as the bombers, concealed within the red clouds, responsible for the explosions on the right side of the painting. Whilst Kenneth Clark found the painting difficult to understand because of what he called the "different planes of reality in which it is painted", he did recognize that it might herald one course that post-war art could take.