The US canceled a B-52 bomber exercise with South Korea due to North Korea's threats to withdraw from the expected summit to reach an agreement on ending the country's nuclear program. The news came a day after the Pentagon said there were no plans to scale back joint US-South Korean military exercises. Meanwhile, trade uncertainty between the US and China increased following the start of the second round of negotiations after President Donald Trump expressed doubts about the success of the talks with the Asian giant, affecting stock indices and pushing down the S&P 500 and Nasdaq.
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