Back in 2003, a Saturday morning disagreement between two small groups of men in a park located in the "LA Strip" to the East of the South Bay area resulted in the LAPD responding. By the times the cops had arrived each of the groups had called in reinforcements and a sizeable riot was about to develop. The cops took one look and called for backup.
A few miles to the West in Torrance, CA, they city was holding its annual Armed Forces Day parade. The parade would head West down Torrance Blvd, in front of City Hall and other municipal facilities. That year they had requested a fly over and the USAF responded with two F-15E Strike Eagles from Edwards AFB. The F-15's proceeded to overfly the parade route from over the ocean from the West, and after IDing the area to receive their fly-by, pulled up into an Immelman Turn and then descended to do a proper beat-up job.
All of this was unknown to the people about to stage a rumble in the park. What they saw was the police pull up, look around, and then call for backup. Then came the Strike Eagles, flying overhead, pulling up just East of the park and then clearly boring in for the kill. Primed by nightly TV images of the war in Iraq, the combatants in the park assessed the situation - and ran like hell.