Kim Jong Un criticizes joint naval missile defense drills by the U.S., South Korea, and Japan, calling them a provocation.
Kim urges North Korean naval forces to modernize their weapons for nuclear deterrence.
The three-nation naval drills aim to enhance coordination in detecting and responding to potential aggression from North Korea.
North Korea condemns joint military exercises as a threat to its sovereignty.
U.S., South Korea, and Japan leaders meet to strengthen cooperation against China's rise and North Korea's nuclear ambitions.
They also discuss partnerships in trade, technology, climate change, and human rights.