TOKYO -- Japan should consider new power sources for submarines to enable longer dives, a panel of experts said Friday in recommendations submitted to Defense Minister Gen Nakatani to strengthen deterrence amid China's military expansion.
Proposals stress sub-launched long-range missiles for China deterrence

The U.S. Navy's nuclear-powered submarines can travel faster and stay submerged for longer than their diesel-fueled counterparts in Japan. (Photo by Ryo Nakamura)
TOKYO -- Japan should consider new power sources for submarines to enable longer dives, a panel of experts said Friday in recommendations submitted to Defense Minister Gen Nakatani to strengthen deterrence amid China's military expansion.