Mordor

Creation
During the 2nd aniversery HomelessGoomba used TNT to blow up the forest terrain. Venturian compared the rocky form to mordor and so it was born.

The first battle of Modor
Not much after the creation of Mordor it's very first battle accured. It turns out just North of Mordor a Lake Chicken base home to Demi god Herbert Dinky resides. So the Tree Pigs attacked hopping to trap the Lake chicken forces with Red Flower and Asssain sheep forces ready from behind to strike. Issac however, managed to wipe out the pig forces with TNT. For the red flowers and sheep, Jordan and Issac were trapped by them but were saved by Mountain Cow rescue hellocopters. The lake chickens had won.

The 2nd battle of Mordor
During Gmod and a minecraft tale Mordor was mentioned alot. We can only assume he was talking about the battle from the movie.

The zombie apocalypse
In the zombie apocalypse a small group of survivors hid in Helms deep to hide from the zombies. Needless to say the were beaten by a troll instead of the zombies. After this Helms deep and Mordor were Zombie territory.