The United States and Japan unveiled plans Wednesday to strengthen their alliance to help counter threats from North Korea and China, which they called the greatest security challenge in the region. In unusually blunt terms, the U.S. and Japanese foreign and defense ministers condemned China's increasing aggressiveness in the Indo-Pacific and elsewhere, called out Russia for its war with Ukraine and castigated North Korea for ramping up its nuclear and missile programs. In a joint statement, Secretary of State Antony Blinken, Defense Secretary Lloyd Austin and their Japanese counterparts, Yoshimasa Hayashi and Yasukazu Hamada, said China presents an “unprecedented” threat...