USA
United States, Russia, China (China definitely, its a toss up between Russia and the US) US and Russia, although China isn't far behind.
top 31 The 1st is US then china then russia
The US of A. Russia, China, and India are still up there, too.
Actually believe it or not Russia and the USA are quite similar except for the language and cultural beliefs.
Although a Nuclear war between the US and Russia is always possible it will most likely never happen. The US and Russia are the only two nations that have a Launch on warning system which is an alert to send interceptor missiles to destroy the incoming attack.
The two most powerful countries in the world are the US and Russia (based on military power) However based on economical power, the US and China.
Because the United States Navy has the World's longest nuclear powered aircraft carrier, the USS Enterprise. The USS Enterprise can carry more planes than any other carriers. The United States Navy was the top ten most powerful navy in the World. The US navy has never been defeated in any war. Russia still has more bigger warships, but how can the US will be able to defeat Russia? Let's see about that. Are the United States Navy powerful enough to defeat Russia? I don't know they can win Russia or not. If World War three broke out let's see if the US or Russia will win the war.
After world war two the US became known as a power country so the US was way more powerful.
Castle bravo is the most powerful bomb ever IN THE US
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The most powerful elected official in the US is the President of the United States.