Well that's the really rub now isn't it?
But here is the long and short
After WWII and the late 50's (Arrow anyone?) The powers that be decided to not develop a Canadian defence industry as in a major prime (like be aware of the "MIC") Canada has no BAE, or Leonardo or even a Rheinmetall. We have some major subsystem suppliers and branch operations of the majors. The total industry is good size but there is no large "hometown" hero. With no MIC to lobby the government of the day, the government did not have to worry about the defence budget to maintain "Jobs" or the like from the big Canada MIC. Oh yes over the last 60 years governments have used DND projects as political tools. You can name many many, Western Star, LAV's, Irving, IMP, etc etc. But never a plan and never with a Canadian Prime. This is very much the goal. No MIC Canada no taking political hits from that side.
After General Dynamics sold Canadair to the Gov at the end of the CF-5 contract. As crown corp the government moved the company to civilian production only. Thus ending any the company's dependency on military projects. Yes did sell the odds and ends to the government. Fast forward to Bombardier. Mulroney government wanting to sell the Crowns from the Trudeau Sr years, goes to family friend and Quebec Inc. leader and dumps Canadair on Bombardier. Mulroney gets a big thump in the head over the CF-18 maintenance contract from Bristol to Bombardier (which is was the start of the Reform party etc.) So Bombardier has a good idea enlarge the Challenger into an 50 seat regional jet. Go to the government for money....the quid pro quo....no military side of the business.
Fast forward Bombardier had no defence division (yes maintenance and pilot training at times) till just the last one or two years. They saw the market growth too.
I can go on...
I love industrial history.