Hello!
I own and run a small technology company in Finland. I've been reluctant to advertise here for some time, even after asking in Matrix channel of this group some months ago, but now I've finally made my mind. It's more of introduction post, I guess, because I'm really bad at marketing.
I'm also make this as a statement: don't just buy European. Sell European! We are blessed with social security systems the rest of the world could not dream about, trying for business opportunities never results in uncertain future - if all fails, we stand for each other. So please, try the new things, be entrepreneurs, and be small if you have to, for it's small businesses and their humble people who really make the Europe economy run!
Anyway, we've been bold enough to actually manufacture things that are commonly thought to be made in Asia (or sometimes USA) here, in EU, better and sometimes (not always) cheaper. And we are just a few friends doing this weird thing for fun and to stay afloat financially.
Here is a webstore link: https://store.zymologia.fi/
It's not pretty, but I suppose there is no European alternative for most of this stuff, and people who need it (as far as I can tell) do not really care for pretty webstores.
We make plant cell culture chemicals. For example, root growth hormone gel, dip a plant cutting in it and it will grow roots much more reliably than normally. Just today I discovered that not only regular plants regrow roots, but also so did this piece of grape my neighbor sliced from his plant erroneously without any buds on it, last leaves it had were in October, still growing roots (not sure it will survive) 
Another product is BAP-6, hormone that stimulates shoot formation. We've just finished rolling out it's production last week, so I'll try some on these leafless grapes to save them. We'll make a gel with this soon and place it in store as well, but anyone can already just make a gel from this powder.
And we make microcloning supplies, that allow propagating plants from a single stem cell (plants have plenty of these) in a jar, without light or any watering. Good way to grow plenty of, say, berry bushes, or rare plants.
We also have bee monitoring wireless sensors that we've developed here and assemble here to order: http://apiologia.zymologia.fi/ These are useful for beekeepers, the data they collect could predict swarming several days in advance (it's a bold statement as most other products could at most do it within 30 minutes or so when you don't really need a sensor to see what is about to happen; but we've found some know-how in old soviet research and made it work).
We also make really good liquid brewers yeast strains through pure culture technology, fed with all-grain pilsner malt, lively and ready to action.
All is handmade with love, we use our products ourselves (more than we sell, unfortunately). So if you, or some of your friends, are into some of these or similar weird hobbies and in need of supplies, or need something new developed and made locally, please contact me!
As I said, I don't see myself fighting against Finland. I can always reason with decent liberal democracy and probably even convert them. Finland is effectively anarchic state - socialist, but you can trade all you want if you want; regulations are minimal and made by actual people, taxes are high (brutally progressive) but you know they are used for the community.
As you can see from modern conflicts, DMZ and stuff matter shit if your opponent is deragned maniac like Putin or Tump, and any ceasefire would be just them regrouping for final attack. They matter little if your opponents are "regular leaders" under pressure of international relations. Border rules are enforced at please of each side, and you'll need to force your opponent.
They'll need guaranties as well by the way. They sure are proposing something in their offer - if you are overgrown revolt, most of your forces might be guerilla (technically all they are non-coms and criminals by international law until you are recognized as a state). Removing your troops from buffer zone pretty much banning entry altogether or it means nothing. If you are not allowed to control execution of treaty, the buffer zone will be militarizred in 20 minutes.
And this Finland reference shows one more thing - the only guaranties in modern world, apart from nukes, are international alliances. You could be winning, but as long as the rule of triangle is in force globally, things can change, and without an alliance (real one, where you interdepend) you'll be crushed soon. So - just look at the map and see - make your state useful for someone you are not fighting against, produce something everyone needs, and be located where force needs to be projected - and you'll be reasonably safe. Do less - and you'll be eternal proxy war playground. Do nothing - and you will not be.