Exotic Pets & Companions, Inc., Jack V-24
It was the "pony" training in which i was trained to pull a pony cart should my owner decide they wanted to go for a ride. i was too small to take a saddle, so i was fitted with a harness and learned to pull the cart.
MLP The Chronicles of Fierce Charge: Hearts and Hooves Day Massacre
The imperial guard force will be a special unit of ponies trained to protect the people of our country, not just the royal family."
An Affliction of the Heart
The reserve guard was a contingent of the royal guard militia: normal ponies trained in the arts of war to be called to service in times of emergency and martial law. having changelings running free in the populace definitely counted as an emergency.