How a mare protects her little one is amazing!

Warning... there is a typo on the writing on my video! I inadvertently put he instead of "SHE", Yes I know a filly is a SHE!!! People need to calm down, I don't need to be schooled or criticized for making a mistake!!!
Very cool video of how one mare was seen protecting her filly after a close encounter with another mare! The filly WAS NOT injured. The brown horse was trying to set boundaries but the filly didn't get it until the confrontation.
Watch what the white mare does as the brown mare came close to the filly after the confrontation. It was an AMAZING thing to watch!
This Paddock is a lot bigger than it looks!!! You can only see a small part of it from the video. So if you want to save your self some time, you can leave out the comments about it being too small of an area!
Also peoples opinions vary on whether these horse should be together with their young ones. It has been the practice at this ranch to do it this way. The person who manages this area is an expert he knows what he is doing!
These Horses are turned out together during the day, at night they are separated when they go into the barn. (Deer Lake Cabins Ranch Resort)