You will find this map in the custom skirmish and can be played against any KI or a human player. The last invasion units will arrive on day 25.
Note: The "host" must defend!
Minas Tirith was a city of Gondor in Lord of the Rings.
With the crossings of Anduin taken the Pelennor was overrun, and Minas Tirith was besieged by a great army of Morgul orcs and Easterlings led by the Witch-king. The city was under-manned, and its defenders had little hope.