1. Does "driving rain" really here mean "rainy scenes"? Is there any connection between rain and battle field?
2. What do " teamwork in the charges of galloping horses" and "the concentration of myriad factory workers" mean? Do they mean "groups of warriors riding horses" and "groups of numerous workers in factories"?
What is war art? Is it a battlefield scene with churned-up blood-red earth, driving rain, smoking ruins, scattered corpses, and twisted metal detritus, all lit by white diagonal stripes of searchlights and the brilliant firework colours of exploding star shells? Is it teamwork in the charges of galloping horses, the billowing sails of ships-of-the line, the humming squadrons of bomber aircraft, and the concentration of myriad factory workers?