Question: which country has the most powerful warship?
Answer: Nr.1 United States. The US Navy is currently the most capable navy in the world. ... 
Nr.2 Russia. ... 
Nr.3 China. ... 
Nr.4 Japan. ... 
Nr.5 United Kingdom. ... 
Nr.6 France. ... 
Nr.7 India. ... 
Nr.8 South Korea.