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All countries having nuclear power reactors use uranium as nuclear fuel.
Some of the various types of energy that are considered reliable sources in more developed countries are wind power, nuclear power and hyroelectric power.
At the present time no country is "threatening nuclear war". A balance of power has existed for the past 60 some years.
See www.world-nuclear.org and do your own research
There are a number of Asian countries that use nuclear power, Japan, China, India, Pakistan, and others.
France, China, the U.S., the U.K.
Japan and the US both use large amounts of nuclear power. The reason for this is both are highly populated, industrial countries. They use a lot of power, so they need efficient energy sources like nuclear power.
There are several Asian countries that could be considered secretive and who use nuclear power. For instance, there are North Korea and China.
Power, weakness, greed, control, fear. Did I leave anything out?
Here are 5 reasons why countries use nuclear power: It is a back up plan for electicity It uses a natural resource It has no greenhouse or acid rain effects It has a very small waste It has a very large scientific base for the cycle
Some of the countries have nuclear weapons because they use them as a defense mechanism. The nuclear weapons are intended to be used whenever there is a war.