In the case that Canada joined the USA in the ARW and Mexico was annexed after the MAW, and Cuba and the Caribbean sometime in the 19th century, and America has a consistent committment to infrastructural development since the beginning, how do you think that infrastructural development of North America would differ ?
I am especially interested in hearing what changes there would be to the canal system in northeastern North America if Canada and the USA are united from the beginning, but any idea about the topic is quite welcome.
I already made the decision that they would build both the Panama Canal and the Nicaragua Canal, and that the first transcontinental railroad would be simultaneously built in a triple route, Canadian, central, and southern.