Defender of Azeroth: Legion Invasions

Defender of Azeroth: Legion Invasions is a Feats of Strength achievement rewarded for successfully completing a demon invasion in the affected zones.

Tracking
As this is a Feat of Strength, it will not show up in the Achievements interface normally. It can be tracked by running the command:

/run AddTrackedAchievement(11201)

Series

 * 1) Stand Against the Legion
 * 2) Defender of Azeroth: Legion Invasions