Nations form alliances in order to achieve goals that otherwise wouldn't be possible. For example, NATO, or the North Atlantic Treaty Organization, a coalition of countries in North America and Europe, agree to defend one another in case of attack from an outside party. This is clearly beneficial, because this intergovernmental support both makes an outside attack less probable, and if it occurs, easier to handle. Another example is NAFTA, or the North American Free Trade Agreement. Shared among Canada, the US, and Mexico, this alliance eradicated trade barriers within these countries. Another beneficial alliance, this agreement increases international trade due to lower costs and thus improves the international economy.
The air is a major part of it and it blows it around
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Central America is a narrow isthmus that is bordered by North America and the Gulf of Mexico to the north and by South America to the south. ... The Caribbean Islands are another region that are considered part of the continent of North America. They are located in the Caribbean Sea to the east of Central America.
The most important effect of the annexation of the Mexican cession was the increase of the United States by size. Some of the surrendered territories were California, Utah, Nevada, most of Arizona, half of New Mexico, a quarter of Colorado and a small porting of Wyoming.
