What is the 21st Century in usa
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The United States was the most powerful country in the world throughout the 20th century.
There was talk in the late 1980s that the United States had reached the apogee of its power and was likely to decline in the years ahead — much the way Britain's strength withered away after 1900.
But that pessimism was short-lived. By the mid-1990s — with the Soviet Union gone and the U.S. economy catching fire — it became fashionable to call the United States a global hegemon.
But what does America's trajectory look like now?
Instead of declining, it looks like the United States will become even more powerful in the 21st century than it was in the 20th century.
Power in the international system is largely a function of two factors: population size and wealth. Great powers are invariably the states with the largest populations and the most wealth.
Population size matters because great powers require large militaries and because only large populations can produce abundant wealth.
Wealth is important because a state cannot build a powerful military if it does not have the money and the technology to equip, train and continually modernize its fighting forces.
Furthermore, the costs of waging war are enormous, as we are now discovering in Iraq. Although the U.S. military easily routed Saddam's army, the war and the occupation have already cost us about $150 billion.
Imagine the cost of engaging a formidable adversary, not a feeble one like Iraq. In short, the mightiest states in the world have to be both populous and rich.
The main reason to think that the United States will grow increasingly powerful over time is demography. America's population is likely to grow at a rapid clip over the next 50 years, while its potential rivals are likely either to shrink or grow modestly. follow me ✌️ keep samile