You're Listening to an article from Horse Canada.com. war-horse-essex Amy Harris.
war-horse-essex
Horses and mules were a vital part of WWI, either as riding animals or as draught animals. (FEI.org)

Guess the Equestrian related term in six tries.
The letter F is in the word and in the correct spot.
The letter O is in the word but in the wrong spot.
The letter Z is not in the word in any spot.