Compare the historical geography of Britain, America and France, and analyze the reasons why the American economy takes off first in the world.

/kloc-The American War of Independence in the late 8th century was the beginning of the founding of the United States, and it was undoubtedly a prerequisite for the development of the United States at that time and in the future. However, many Latin American countries, both colonies, later got rid of the colonial rule of European powers through the war of independence, but never embarked on the road of prosperity. It can be seen that war can create a new country, but other factors are needed to build a new country, including the United States. There are countless examples of this.

When the United States was founded, its territory was small. /kloc-After the middle and late 9th century, the territory of the United States extended westward from the east Atlantic coast, across the American continent, and directly extended to the west coast of California, Oregon and Washington, covering the entire North American continent except Canada and Mexico. Undoubtedly, territorial expansion exists objectively in American history. /kloc-there are many ways for the United States to expand its territory in the 20th century, including diplomatic means (the Jay Treaty between the United States and Britain in 1794), capital purchase (Louisiana purchase in 1803, Alaska purchase in 1867), and war (1846-it can be seen that. More important and fundamental,19th century American westward expansion movement. /kloc-At the beginning of the 0/9th century, most of the inland and western parts of the United States were sparsely populated, even desolate undeveloped virgin land. By the end of 19 and the beginning of the 20th century, after nearly a hundred years of economic development, the United States has become the world's leading agricultural, industrial and commercial power. Construction, not war, is the source and mainstream of America's rise and strength.

There used to be a popular view that the strength of the United States was the result of huge war funds in World War I and World War II. In fact, long before the outbreak of World War I, the economic strength of the United States began to surpass the European powers such as Britain and France, ranking first in the world. In the two world wars of the 20th century, except the United States, no other country had the strength to meet the huge demand for industrial and agricultural products and arms during the war, except the countries and regions directly ravaged by the war. Once the world ignites a bonfire of war, only the United States has enough economic strength to meet the needs of war, and at the same time, it uses war to turn war into an opportunity for economic development. The so-called "opportunity favors those who are prepared", that's right. In short, the military strength of the United States in the two world wars was based on the economic strength that the United States had formed before the war. Economic strength comes first, and victory on the battlefield is irreversible.