TOKYO -- U.S. President Donald Trump's green light for South Korea to acquire nuclear-powered submarines could reshape the security environment in East Asia, where Japan has been having its own debate on upgrading its fleet.
Takaichi's government has shown openness to the idea

A U.S. Virginia-class attack submarine. President Donald Trump said South Korea could build nuclear submarines at American shipyards. (U.S. Navy/Huntington Ingalls Industries via Reuters)
TOKYO -- U.S. President Donald Trump's green light for South Korea to acquire nuclear-powered submarines could reshape the security environment in East Asia, where Japan has been having its own debate on upgrading its fleet.