"Reveille” is a bugle call, trumpet call, or pipes call most often associated with the military; it is chiefly used to wake military personnel at sunrise and accompanies the raising of the flag on a military installation. The name comes from réveillé (or réveil), the French word for "wake up".
On the other hand, “Retreat” is a similar ceremony which serves a twofold purpose - it signals the end of the official duty day and serves as a ceremony for paying respect to the flag as it is lowered.
You will need to mimic both in order to claim this cache!
Original swag contents of the cache are appropriately themed. You are looking for a cylinder-shaped container in a low-to-no muggle location (muggles may be nearby but a reverse-slope defense will keep you out-of-sight-out-of-mind).
Solid log write-ups and constructive critiques are always appreciated. Cache on. RLTW. DoL.