Ukraine, in the aftermath of the Cold War, emerged as the third-largest nuclear power ... in secret underground locations ...

China is the third largest country in the world and the most populated country on Earth. It is a one-party Communist state. China is changing rapidly and faces a number of political challenges.

The United States has been the world's largest and richest ... Italy Italy has a well-developed economy and is the third-largest in the European Union. The country is known for its strong and ...