Chinese navy ships and Russian submarines are now traveling in North Atlantic waters at a pace not seen since the end of the Cold War. The United States Navy’s top admiral made the statement to VOA. Chief of Naval Operations Admiral John Richardson said China's navy is competing with the United States. He said it is ready and capable of operating anywhere. He added, "Even five years ago, we wouldn't have seen anything like this.” However, Chinese operations may not be considered as threatening as the growing activity of Russian submarines. U.S. officials worry that Russia may use its submarines to cut or listen to undersea communications links that connect North America and Europe. “We're talking about more than we've seen in 25 years,” Richardson said. Because of these activities, the United States has recently reactivated the second fleet to secure the ocean on its eastern coast.