In the new Path of Valor what the "Complete A Challenge Event" mean?

I’ve been able to get most of the Valor points but I’m not sure what to the for the “Complete A Challenge Event” point. Anyone know?

A post was merged into an existing topic: :compass: First Path of Valor Log and Discussion – Starts February 3

A post was merged into an existing topic: :compass: First Path of Valor Log and Discussion – Starts February 3