Image imported from derpibooru 
Original Description:
 
The Zephyr Heights Defense Force has/had a variety of specialized weapons to defend against the potentially nefarious designs of other pony races. The compact design of unicorn inhibitory magical shield technology required an efficient and more powerful deployment system in the case of a full-scale invasion. Thus was born the “heavy” shield deployment system and troops trained in their use. So impressive was this unit that ZBS tried to make a TV series about them.
 
Interesting trivia: Given off-hours activities and use of this technology, this unit had one of the best tennis teams ever seen in all of Equestria.
 
 
Technical notes: A silly little idea that I had to sketch out and the jokes just got more and more lame. :)