My favorite business model is where upfront product costs are super low to get contract wins then upkeep requires proprietary parts or software that need to be replaced or updated frequently at nosebleed prices. Repeat this kind of bullshit enough and you can cripple an entire country’s military operation. Yay privatization! :D
Oh and someone once said, you can either have your fictitious notions of a racially pure nation state or you can have a functioning economy, but not both. So choose.