• President Trump widened U.S. sanctions against trade with North Korea and presented a united front against its nuclear program with President Moon Jae-in of South Korea and Prime Minister Shinzo Abe of Japan.

“The brutal North Korean regime does not respect its own citizens or the sovereignty of other nations,” Mr. Trump said at their lunch, on the sidelines of the U.N. General Assembly. He also hailed a “very bold move” by China’s central bank to limit dealings with North Korea.

The North’s foreign minister compared Mr. Trump’s warnings at the U.N. this week to “the noise of a dog barking.”