If the source document states that the exercise name is BLUE EAGLE, how should a new document refer to this information?

When a source document states that the exercise name is BLUE EAGLE, the information must be treated according to its classification guide. Referring to this information as "Unclassified" indicates that there are no restrictions preventing dissemination or discussion of the exercise name.

Unclassified information is available for public release and does not require protection against unauthorized disclosure. If the source document explicitly classifies the exercise name differently (such as classified or restricted), that designation would necessitate more careful handling and safeguarding.

Given that no classification level is indicated in the scenario, categorizing the exercise name as Unclassified allows for appropriate use and distribution of that information in contexts where sharing is necessary. Thus, it becomes clear why treating BLUE EAGLE as Unclassified is the correct approach.