Comment by probably_wrong

I think you should also quote this part:

> Within 60 days of the date of this order, the Secretary of War shall submit to the President (...) a recommendation on the actions required to permanently change the name of the Department of Defense to the Department of War. This recommendation shall include the proposed legislative and executive actions necessary to accomplish this renaming.

It may currently be a second name, but the explicit intention is for it to become the only one. In HN terms I'd argue that saying "there is no Department of War" is akin to arguing that a piece of software doesn't have feature X because it's only available in the beta release.