If an effect *(e.g., A Year of Perfect Stillness)* skips "all actions", what is affected?

If an effect (e.g., A Year of Perfect Stillness) skips "all actions", what is affected?

Any time the Invaders would Ravage, Build or Explore that turn, any number of times.
This includes any normal actions that come from the Invader cards, and also any extra actions that come from effects like the power Manifest Incarnation or the event New Cash Crops Take Hold. (See the B&C rulebook, p. 15, for the distinction between "normal" and "extra" actions.)