How do I contact Disney to ask about their affiliations oversea with questionable entities?

I recently saw some ads for Disney Live! performances oversea. Not a big deal, I know, but the problem is that the company that's putting on the performance is a subsidiary of a major arms manufacturer that's known for, among other things, the export of missiles and other weapons to questionable parts of the world.

Anyone know how to contact Disney to ask them about why they choose to do business with this kind of company? Only contact tool their website provides seem to be either for me to ask question about the site itself or investor relations for current stock holders.