The source document states: (S) The exercise will begin on 4 May and end on 25 May

(U) Elements of this unit will participate in the exercise

(U) Unit members participating will be Barkley and James

The Security Classification Guide (SCG) states:

The unit will participate in the exercise is Unclassified

The exercise dates are Secret

Participating members of the unit are Unclassified

The new document states the exercise will begin 4 May and end on 25 May.

What is the classification of the new document?