The Pen is mightier than the sword. Your MP has a fiduciary duty under common law. Your MP must carry out their duties according to Common Law. There must be no Conflict of Interest, No profit, a Duty of Confidentiality and there are remedies for breach of fiduciary duty!
Please write to your MP and ask these questions! Record and Keep their response for a potential English Constitutional legal challenge. It is IMPORTANT. I would suggest sending recorded delivery and keep the posting receipt proof of service. This is important for the legal challenge.
Find your MP here: https://members.parliament.uk/constituencies/
Letter to Every MP
[MP Address] [Your Address and name]
Dear Mr (Your MP).
I require you to answer these questions within 14 days of receipt:
1. Are you aware of European Defence Union ?
2. Are you supporting HM Government unifying British Military and UK Defence industry into EDU ?
3. if not what are you doing to stop this ?
4. if you support this policy regardless of Brexit / leaving the EU, are you going to make an open statement in support?
For those that want more information on fiduciary duty please read.