Answer:
Mercantilism
Explanation:
Based on the information provided within the question it can be said that the approach that most influenced the international trade was Mercantilism. This is a trade policy that is used in order to increase exports in a country while at the same time minimizing imports of the nation. This seems to be the inspiration of Republic of Senna's approach since they are enforcing tariffs and quotas to limit and control imported goods, while supporting and growing exports.