TIMELINE-Key dates in the U.S.-China trade war

TIMELINE-Key dates in the U.S.-China trade warTop U.S. and Chinese trade officials met on Thursday for the first time since late July to try to find their way out of a bitter, 15-month trade war as new irritants between the world's two largest economies threatened to dash hopes for progress. Chinese Vice Premier Liu He, U.S. Trade Representative Robert Lighthizer and Treasury Secretary Steven Mnuchin were trying to narrow differences enough to avoid a scheduled Oct. 15 tariff rate increase on $250 billion worth of Chinese goods. If talks fail to produce progress, by Dec. 15, nearly all Chinese goods imports into the United States -- more than $500 billion -- could be subject to punitive tariffs in the dispute, which spans U.S. President Donald Trump's entire time in office.