China's Xi Jinping and Russia's Vladimir Putin on Thursday pledged a "new era" of partnership between the two most powerful rivals of the United States, which they cast as an aggressive Cold War hegemon sowing chaos across the world. Xi greeted Putin on a red carpet outside the Great Hall of the People in Beijing, where they were hailed by marching People's Liberation Army soldiers, a 21-gun salute on Tiananmen Square and children waving the flags of China and Russia. China and Russia...