China is fast building its fourth aircraft carrier, which experts say will likely be the biggest and nuclear powered

China's armed forces are constructing the country's fourth aircraft carrier with steady progress, according to the Center for Strategic and International Studies. Details about the vessel are scarce, but it is very likely to be the biggest of China's aircraft carriers and will probably be nuclear powered.

Though still years from deployment even on its accelerated construction schedule, the project represents the latest step in the Chinese navy's rapid modernization drive and Beijing's push toward a larger, more capable blue-water fleet (a naval force capable of operating globally).

The Center for Strategic and International Studies said the project could result in 'a sea change in the global balance of military power.'