Weapons administration

Visitors watch a photo showing North Korea's missile launch at the Unification Observation Post in Paju, South Korea, near the border with North Korea, Friday, Dec. 13, 2019. North Korea accused the United States of "hostile provocation" on Thursday for criticizing its ballistic missile tests during a United Security Council meeting and warned that the Trump administration may have blown its chance to salvage nuclear negotiations. (AP Photo/Ahn Young-joon)

Russian President Vladimir Putin, center, attends a meeting on arms exports in Moscow, Russia, Monday, Dec. 16, 2019. Putin said Russian arms sales abroad has risen over the past year. (Alexei Druzhinin, Sputnik, Kremlin Pool Photo via AP)

U.S. Special Representative for North Korea Stephen Biegun, center, arrives at Incheon International Airport in Incheon, South Korea, Sunday, Dec. 15, 2019. Biegun arrived in the country on the first leg of his two-stop Asia trip and will meet his counterparts in South Korea and Japan. (AP Photo/Lee Jin-man)

Secretary of State Mike Pompeo speaks during a media availability at the State Department, Wednesday, Dec. 11, 2019, in Washington. (AP Photo/Alex Brandon)

In this Friday, Dec. 13, 2019, photo, an image showing North Korea's missile launch is displayed at the Unification Observation Post in Paju, South Korea, near the border with North Korea. North Korea on Saturday, Dec. 14, says it successfully performed another "crucial test" as its long-range rocket launch site that would further strengthen its "reliable strategic nuclear deterrent. (AP Photo/Ahn Young-joon)

FILE - In this Oct. 2, 2019, file photo, people watch a TV showing a file image of an unspecified North Korea's missile launch during a news program at the Seoul Railway Station in Seoul, South Korea. On Thursday, Dec. 12, 2019, North Korea accused the United States of “hostile provocation” on Thursday for criticizing its ballistic missile tests during a United Nations Security Council meeting and warned that the Trump administration may have blown its chance to salvage nuclear negotiations. (AP Photo/Ahn Young-joon, File)

In this Monday, Dec. 2, 2019, photo provided Tuesday, Dec. 3, 2019, by the North Korean government, people dance to celebrate the completion of Samjiyon city. On Monday, North Korean leader Kim Jong Un visited Samjiyon county at the foot of Mount Paektu to attend a ceremony marking the completion of work that has transformed the town to “an epitome of modern civilization,” KCNA said. It said the town has a museum on the Kim family, a ski slope, cultural centers, a school, a hospital and factories. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP)

People watch a TV screen showing a file image of a ground test of North Korea's rocket engine during a news program at the Seoul Railway Station in Seoul, South Korea, Monday, Dec. 9, 2019. North Korea said Sunday it carried out a "very important test" at its long-range rocket launch site that it reportedly rebuilt after having partially dismantled it after entering denuclearization talks with the United States last year. The sign reads: "Very important test." (AP Photo/Ahn Young-joon)

CORRECTS TO REMOVE INCORRECT QUOTE FROM TWEET - FILE - In this June 30, 2019, file photo, U.S. President Donald Trump meets with North Korean leader Kim Jong Un at the border village of Panmunjom in the Demilitarized Zone, South Korea. North Korea has again insulted President Donald Trump after he tweeted that North Korean leader Kim Jong Un wouldn’t want to abandon a special relationship between the two leaders and affect the American presidential election by resuming hostile acts. (AP Photo/Susan Walsh, File)

People watch a TV screen showing a file image of a ground test of North Korea's rocket engine during a news program at the Seoul Railway Station in Seoul, South Korea, Monday, Dec. 9, 2019. North Korea said Sunday it carried out a "very important test" at its long-range rocket launch site that it reportedly rebuilt after having partially dismantled it after entering denuclearization talks with the United States last year. The sign reads: "Very important test." (AP Photo/Ahn Young-joon)