Title: Diablo IV - Vessel of Hatred - Siege of Chakhir Ruins Legion Event
Description:
There is a new type of Legion event in Nahantu called "Siege of Chakhir Ruins". It takes place in Chakhir in the western parts of Nahantu. You have to conquer the Chakhir first, though.
This event differs from the usual Legion events.
The players must protect four "Wards of the Wild" which are located in Chakhir for a certain amount of time. After this the Herald of Invasion arrives with a bunch of stronger minions. And then it's looting time.
Link: https://www.digioso.org/d4_siege_of_chakhir_ruins