How to become a permanent neutral country, the first must be the whole people of shangwu, Switzerland is a mountain country its own economic underdevelopment 🇨🇭 in the Middle Ages by the European nobility as mercenaries

How to become a permanent neutral country, the first must be the whole people martial, Switzerland is a mountain country its own economic underdevelopment 🇨🇭 in the Middle Ages is to give European nobles as mercenaries for a living, Switzerland's long soldiers are also more famous, specializing in dealing with plate armor knights, now Switzerland is a compulsory military system, every man must join the army, the Swiss army is more good at mountain warfare and snow warfare, so that nearby European powers dare not invade, the second is easy to defend and difficult to attack, Switzerland is a mountain country, And not coastal, can only attack from the air and land, and Switzerland has more mountains ⛰️ (including the Alps) and is relatively cold, the army to attack Switzerland will definitely have to pay a heavy price, the third is that many countries of the rich and important people are deposited in Swiss banks, so it has caused no one to easily attack Switzerland, because everyone regards Switzerland as the last way back.