# Wilson loops and gauge invariant operators (Part 2)

These questions are sort of a continuation of this previous question.

• I would like to know of the proof/reference to the fact that in a pure gauge theory Wilson loops are all the possible gauge invariant operators(..that apparently even the local operators can be gotten from the not-so-obviously-well-defined infinitesimal loop limit of them!..)

• If the pure gauge theory moves into a confining phase then shouldn't there be more observables than just the Wilson loops..like "glue balls" etc? Or are they also somehow captured by Wilson loops?

-