What if Mexico Was the Strongest Country in the World?

If Mexico won a war against the USA and it was later discovered that Mexico had been the strongest country in the world since the 1900s but had hidden itself quite well, the international landscape would be drastically changed. With the knowledge of Mexico's strength, other countries would likely enter diplomatic relations with it in order to gain access to its resources and gain an alliance with such a powerful nation. Mexico would likely take advantage of its newfound status and would become a major economic and military power in the world. This could mean increased global stability as Mexico could become a mediator between rival countries. Mexico could also use its newfound power to enact policies to reduce inequality and poverty in the country.