In the armed services, a military cadence or cadence call is a traditional call-and-response work song sung by military personnel while running or marching. In the United States, these cadences are sometimes called Jody calls or Jodies, after Jody, a recurring character who figures in some traditional cadences; Jody refers to the man with whom a serviceman's wife/girlfriend cheats while he is deployed.
 

Requiring no instruments to play, they are counterparts in oral military folklore of the military march. As a sort of work song, military cadences take their rhythms from the work being done (compare sea shanty). Many cadences have a call and response structure of which one soldier initiates a line, and the remaining soldiers complete it, thus instilling teamwork and camaraderie for completion. The cadence calls move to the beat and rhythm of the normal speed (quick time) march or running-in-formation (double time) march. This serves the purpose of keeping soldiers "dressed", moving in step as a unit and in formation, while maintaining the correct beat or cadence.
 

The word "cadence" was applied to these work songs because of an earlier meaning, in which it meant the number of steps a marcher or runner took per minute. The cadence was set by a drummer or sergeant and discipline was extremely important, as keeping the cadence directly affected the travel speed of infantry. There were other purposes: the close-order drill was a particular cadence count for the complex sequence of loading and firing a musket. In the Revolutionary War, Baron von Steuben notably imported European battlefield techniques which persist, greatly modified, to this day.

This military Cadence is really associated strongly with the American military and in particularly the infantry. For reenactors it doesn't seem to play a part in any groups training and impression. However, like the rifle drill that we teach over time, we will also start to introduce Cadence, not only is it fun to do (yes it is!) but it will entertain all who see it, even when it goes wrong. Here are a few examples of Second World War cadence from some late war videos.