Horse Armor

Horse armor is an item, a special type of armor that can be given to a horse to wear. Horse armor has infinite durability and can be found in dungeons as well as randomly generated chests in the Nether fortresses, in Desert Temple chests and in abandoned mineshaft (minecart) chests.

Horse armor can be applied by right-clicking on a horse and placing it in the second inventory slot to the left of the skin. This allows the armor to be applied, removed, or replaced at the players leisure. Before the addition of the horse GUI after the release of 13w21a, horse armor could only be applied by placing it on the horse.

Horse armor is not enchantable, unless using an Anvil in creative mode. Enchanted horse armor will not have any effects on the horse.

Protection
There is a gradual increase in the defense given from a horse wearing the different types of armor:

History
This is how horse armor was crafted pre-. The color wool did not matter and would not alter the armor's appearance whatsoever.

Trivia

 * Unlike armor for players:
 * Horse armor does in fact become invisible when an invisibility potion is used.
 * Gold horse armor is more powerful than iron horse armor (this may be because player gold armor has less durability and protection than iron, so it is worse, but horse armor has infinite durability).
 * Horse armor does not exist in leather or chain varieties.
 * You cannot breed horses if they have armor equipped.
 * Horse armor can only be found in dungeons, nether fortresses, abandoned mineshafts, blacksmith chests, and both types of temples.

Gallery
Pferderüstung Armure pour cheval 馬鎧 Конская броня 马铠