For someone so sure of their opinions Pete, it baffles me just how wrong they so often are. Firstly, Cameron didn't predict WW3, that was spin applied by the media. He, and all of the living former heads of NATO, predicted that a vote to leave could destabilise the western world and lead to greater security problems.
Similarly, the claims by Osborne were made on the back of reports published by the Treasury (
https://assets.publishing.service.g...ate_economic_impact_of_leaving_the_eu_web.pdf), the BoE and the IMF, which explored the impact of Britain exiting the EU the day after the vote. The no deal scenario has widely been dismissed as project fear, despite the document I shared that was published by the government this week outlining some of the measures being undertaken to account for it (which I suspect you haven't read).
Regarding your statement about an EU army, that was first proposed 68 years ago -
https://www.cvce.eu/content/publica...af1-44c1-b313-212b31cad878/publishable_fr.pdf - yet still, despite politicians regularly suggesting one should exist, we don't have one. Is the German CDU leader who proposed one this week any different to Alain Juppe when he did so in 1996? Trump has repeatedly been saying that Europe needs to invest more in its armed forces so that it can defend itself without requiring America to do so on its behalf, yet when it does that, people like yourself get all wet in the gusset. It's a complete nonsense and I'd expect someone with your defence industry experience to know only too well how long this idea has been batted around without ever getting even remotely close to fruition.