Amid a series of escalations across the Korean Peninsula, the first new U.S. military strategy released under President Joe Biden has warned North Korean Supreme Leader Kim Jong Un that his government would not "survive" in the event that he used a nuclear weapon. The Pentagon jointly released on Thursday three major policy documents, the National Defense Strategy, the Nuclear Posture Review and the Missile Defense Review. The reports outlined a range of measures the United States was taking to deter and defend against a number of challenges, including those posed by China, Russia, Iran and North Korea. But after...