Thin non- European Power in the 20th Century!!
View attachment 369254
True.
But comparing proposing to reconquer the Southwest of a country to another country after announcing unrestricted submarine warfare, to "insulting" a diplomat, which wasn't even, in reality, an insult if France bothered to ask Benedetti...
... After France got what it wanted when Prussia withdrew Leopold's candidacy for the Spanish throne...
The proper diplomatic course is not war, but to demand an explanation and apology from Prussia.
Which Napoleon III never bothered to do.