In The Ring of the Nibelung, written by Wagner, there was a line:
"Whoever can forge this gold into a ring can rule the world, but he must renounce love."
The relationship between the European Wizarding World and the Muggle world was complicated. Switzerland had not existed before, so naturally there had been no Swiss Ministry of Magic. Given the British Muggle government's current attitude, they did not want Switzerland to become independent. With the precedent of Piedmont, they feared that Napoleon would annex Switzerland. Not only would this destroy the natural boundary established by the Treaty of Lunéville, but France would also continue expanding through gradual encroachment. He had previously declared that he would not interfere in Swiss affairs, but later he not only sent people to dissolve Switzerland's parliament, he also dispatched troops to take part in the Swiss civil war.
In fact, Britain had also interfered in Swiss affairs behind the scenes. They simply used money to fund one faction's military expenses, rather than doing it as "obviously" as Napoleon had.
Even European wars had rules. For example, nobles in the Middle Ages could pay ransom and avoid death. Wars launched over food were actually very primitive, much like barbarians fighting over food. During the negotiations for the Treaty of Amiens, the Addington ministry's order to seize French fishing boats as though they were enemy warships was very primitive. Before Georgiana brought the prepared steaks to the table, Lucien had already reached an agreement with the "MPs": French warships would not come into contact with French fishing boats, nor would they retaliate. Only then did Britain's new cabinet restore the French fishermen's fishing rights.
The Eastern tributary system differed greatly from the Western system of treaties. For example, in the first year of Hongwu, Ming Taizu Zhu