Most of the information is provided in the screenshot and shortly put: I have no idea what this Dialog Option is for.
I'll not bother making a second thread about the Tannis Town Marshall, so, I'll just add this here--
Train Militia doesn't work with the Tannis Town Marshall. If you don't have Training, then it shows you that, but if you do, it displays a blank message exactly like it currently does for Status.
These should be corrected.