What is an invasion and how can I start it?

Invasion represents a battle between your alliance members and a powerful enemy called Corrupted Spirit. Once you initiate an Invasion, you must wait about two days before challenging it again. If you successfully complete the objectives in your previous attempt, you’ll unlock a higher difficulty level for the next round.

To begin an Invasion, your alliance needs a special building called the Front Line. However, this building can only be constructed if your alliance has occupied at least one Stronghold. If no Stronghold has been secured yet, collaborate with your alliance members to strengthen your forces and claim territory.