Not 100% sure but I'm pretty sure siam was one of the only ones to escape colonization. look at effects on neighbouring countries?
The Smoot-Hawley tariff, passed in June 1930, raised import tariffs to unprecedented levels, which virtually closed the US borders to foreign products. This generated a counterpart of the other countries, which also imposed tariffs on American products
The answer is slavery. The Republicans were anti-slavery, while the democratic south was pro slavery. Eventually that, and a couple of other things, led to the Civil War.
Sorry if this was a bit late, Brainly had just recommended this question for me to answer, but I hope this helps!
The main reason why OPEC imposed an oil embargo on the US is because the US supported Israel in its “Yom Kippur War” with Egypt, and OPEC was made up of states that were against Israel, who was fighting the war against Egypt.
China is growing exponentially as a provider of steel and other products, and it makes complete sense since the nations economy is rising at an incredible pace. The United States traditionally was a huge supplier, but over the past 12 years China has been building structures at an unprecedented rate, and steel being the huge component of large skyscrapers this is one of the biggest reasons for its growth over the decade