undesirable discharge

He did not mention to you he received an undesirable discharge from the Marine Corps?

Had it been changed to undesirable discharge, as you understand it?

Now, does this involve the question of the undesirable discharge?

Did you have any discussion with your brother on the subject of his undesirable discharge after he returned to the United States?

Yes; he just advised about the matter of having been given an undesirable discharge had not been reviewed.