Most products are strategically important. You might be fooled into saying that toaster ovens aren't strategically important, but then if your country can't make its own toaster ovens, it turns out that it can't make dozens of other strategically important products either. Steel, ships, automobiles, semiconductors and computer infrastructure, food, clothing, aircraft, medical equipment, and on and on and on. It's difficult to name a manufactured product that isn't.
>Trade happens because not a single country has or can produce all the (strategically important) products it wants,
This is an interesting claim. What if instead, a single country could produce all the products it wants and needs, but that doing so would be less lucrative for a certain subset of the population that can take advantage of trade? In such a case, that single country might fail to do so and import a bunch of crap anyway, don't you think?
>Trade happens because not a single country has or can produce all the (strategically important) products it wants,
This is an interesting claim. What if instead, a single country could produce all the products it wants and needs, but that doing so would be less lucrative for a certain subset of the population that can take advantage of trade? In such a case, that single country might fail to do so and import a bunch of crap anyway, don't you think?