Limited Time Offer! For Less Than the Cost of a Starbucks Coffee, Access All DevOpsSchool Videos on YouTube Unlimitedly. Master DevOps, SRE, DevSecOps Skills! Enroll Now Source – washingtontimes.com Before D-Day, Gen. George Patton commanded an army that didn’t exist. His First U.S. Army Group was supposedly training around East Anglia. It featured phony tanks so German spy planes could report on them. It kept up a steady stream of radio traffic so German spies could track the movements of troops.