U.S. and Chinese negotiators are holding high-level talks aimed at settling a six-month trade war that has weakened both sides, shaken financial markets and clouded the outlook for the global economy. Yet the odds seem stacked against any substantive resolution this week to the standoff between the world's two biggest economies.

Russian President Vladimir Putin's foreign affairs adviser, Yuri Ushakov, said the Russian leader didn't feel insulted, but added that the Kremlin regrets the cancellation in view of the numerous issues that require discussion. "No, we didn't feel hurt, but we express our regret," he told reporters.

Jim Yong Kim, the president of the World Bank, announced Monday he is resigning at the end of January. Kim's unexpected departure nearly three years before his term was set to expire, is likely to set off a fierce battle between the Trump administration and other countries who have complained about the influence the United States exerts over the World Bank.

The first time American John Allen Chau made it to the remote North Sentinel Island, he came bearing gifts. He interacted with some of the tribesmen until they became angry and shot an arrow at him. It struck a Bible Chau was carrying. The 26-year-old adventurer then swam back to a boat of fishermen that was waiting at a safe distance. That night, he wrote about his adventures and left his notes with the fishermen. He returned to the island the next day — his last day alive.

Amid weighty issues of state, another fascination at the Group of 20 summit has been President Donald Trump's will-he, won't-he dance with two fellow leaders who are something of international outcasts these days. Would Trump, who has an affinity for strongmen and a distaste for business as usual, stay away from Russian President Vladimir Putin and Saudi Crown Prince Mohammed bin Salman? On Day One of the summit in Argentina, the diplomatic quick-stepping was everywhere Friday.

With hugs, teachers and a touch of anxiety, thousands of children returned to school and some semblance of routine Monday, three weeks after Northern California's deadly wildfire destroyed their homes and classrooms. About 31,000 students in all went back to school. Many of them are going to class in other buildings because their schools were damaged or destroyed, or are inaccessible inside evacuation zones.

White House national security adviser John Bolton is expanding his influence in increasingly visible ways, pursuing his own long-standing foreign policy priorities at the risk of tensions with top administration officials — and even President Donald Trump himself. Since joining Trump's White House, Bolton has pursued an agenda that includes trying to break Iran financially, oust Venezuelan President Nicolas Maduro, shield Americans from the reach of the International Criminal Court and toughen the U.S. posture toward Russia. He coordinated with key lawmakers, U.S. diplomatic and defense officials and the Israelis to compel Trump to slow an abrupt withdrawal of American forces from Syria.

Thousands of migrants in two caravans heading for the U.S. border are asking for "safe and dignified" transportation to Mexico City, but the Mexican government has shown no inclination to assist — with the exception of its migrant protection agency that gave some stragglers rides to the next town over the weekend.

Mayor Juan Manuel Gastelum said that the Mexican federal government has provided little assistance and he is not going to commit the city's public resources to dealing with the situation. He said 4,976 migrants had come to the city. "We don't have sufficient and necessary infrastructure to adequately attend to these people, to give them a decent space," he said.

The European Union and Japan have inaugurated a landmark deal they say will boost trade between the two economic powers and sends the message that international agreements still have a purpose in an age of increasing protectionism. The agreement that comes into effect Friday will scrap nearly all tariffs on products both sides trade in.