>>The only thing prevents war is a strong military force.

Why hasn't France invaded Luxemburg then? They would be met with close to zero resistance and no other EU state would attack them militarily for it. You must be able to see that there are other factors preventing war other than military force?

>Why hasn't France invaded Luxemburg then?

Because they're a developed, civilized, self sufficient democracy, so they have more to loose than to gain by doing that in modern times.

My point wasn't that they aren't, my point was that they can do it if they want to, and no trade is gonna stop them, they just don't want to because they don't need to.

If you want a better example look at Monaco, who had to cede to France and tax only the French citizens living there as Monaco was popular place for French elite tax dodgers. Monaco did this for France and no other country precisely because France has the military upper hand in this negotiation and could just invade them without breaking a sweat if they opposed.

Another example is when Swiss military accidentally bombed their neighboring ally Liechtenstein several times during drills/exercises, and they just apologized with a box of wine, but funny how they never accidentally bomb their more powerful neighbors France and Germany. Weird how the small kids who can't fight back always end up being bullied, amirite?