The land mass of a combined Canada + United States would be 7.65 million square miles, eclipsing Russia at 6.6 million square miles, making it the largest land mass of a single sovereign nation in the world.

Looking at it from a natural resource perspective, the combined country would have plenty of energy, forestry, and educated people who are innovative and able to manufacture and advance technologies for the benefit of all of humanity.

Canadian "snowbirds" often spend months in "the states" in places like Arizona, and traveling on vacation in the United States is a common pastime for Canadians.

Having a commonly spoken English language and compatible culture certainly helps. Many Canadians consume American media, and many Canadian musicians and actors have found career success in the United States.

Questions around what system of measurement to use (metric or standard), whether to adopt English as the official language, and whether each Canadian province should actually be its own state would need to be answered. Of note, many Canadians actually still use Fahrenheit for their home thermostats.

Returning the United States to a true federalist constitutional system would benefit not only the current 50 American States but also any new additions from Canada, as each State and Province would in many respects operate as their own sovereign nations under the banner of a common union as originally intended by the Framers.

All people in this newly formed union would benefit from the strong provisions of individual liberty found in the United States Constitution.

We also share the longest un-defended border in the world, and many families have members who live on both sides of the border. Major border crossings like the Peace Arch in Blaine, Washington, commemorate our relationship as more like family than friendship under the phrase inscribed on the arch "brothers from a common mother".

The majority of the Canadian population lives within 100 miles of the US border, and even more interestingly, most Canadians live south of the 49th parallel. Several American cities like Seattle, Minneapolis, and Detroit, are north or equal in parallel to a couple of Canada's most densely populated cities, Toronto and Montreal.

The idea of Canada joining the United States makes more sense than not.