Private investment driving the growth of technical schools is probably the best way to approach that. If a Polish arms industry is making a lot of money, it would make sense for them to fund schools to ensure they have employees. The governments might partly subsidize, or or give legislative preference too the business of these colleges, but they don't necessarily have to be the primary financiers.

You just have to look outside the box. The real world isn't a video game, so these things are much more complicated. The Government doesn't drag a research funding bar up or choose what tech they are going to grind. Rather, they go out of their way to clear obstacles in the way of what they want to develop. And this will be partially egged on by the fact that successful politicians will be the ones being funded by the arms industry.

To simplify, The Arms Industry makes shit loads of money from selling arms, they use that money to buy off politicians and pay for the infrastructure and schools they need to make that arms industry more successful, and the politicians they pay off earn that money by pushing through whatever benefits the arms industry. 

...which happens to mean the conflict in Russia and Polish involvement in it, since war sells guns and selling guns is what the arms industry is all about. That means jingoistic propaganda, and a populace who's jobs depend on militarism and, for the most part, know that.

This is what an "Military-Industrial Complex" is, btw. That is what that word means, for the most part.