Benjamin Mayo, writing for 9 to 5 Mac:

Apple will hold a special Apple Watch Activity Challenge to commemorate Veterans Day on 11 November in the United States. Apple Watch owners can earn a special badge and iMessage sticker for the event.

To earn the award, simply complete an 11 minute workout on Veterans Day. Accumulate time with the Workout app or a third-party app that adds workouts to the HealthKit database.

Apple should have challenges like this more often.