U.S. President Donald Trump listens during the U.N. Security Council briefing on counterproliferation at United Nations headquarters in New York on Sept. 26. (DON EMMERT/AFP/Getty Images)
U.S. President Donald Trump waits to address the 72nd session of the United Nations General Assembly at the UN headquarters in New York on September 19, 2017. TIMOTHY A. CLARY/AFP/Getty Images
Republican presidential candidate Donald Trump speaks at the CFE Arena during a campaign stop on the campus of the University of Central Florida in Orlando on March 5, 2016. (Joe Raedle/Getty Images)
Russia's President Vladimir Putin, Defense Minister Sergei Shoigu, and Chief of the General Staff of the Russian Armed Forces Valery Gerasimov watch the Vostok-2018 military drills at Tsugol training ground not far from the Chinese and Mongolian border in Siberia, on September 13, 2018. ALEXEY NIKOLSKY/AFP/Getty Images
This picture shows the destruction after government forces bombed the town of Al Habit on the southern edges of the rebel-held Idlib province on September 9, 2018. OMAR HAJ KADOUR/AFP/Getty Images
U.S. Secretary of State Mike Pompeo addresses the press during a briefing at the State Department in Washington on Aug. 16. (Andrew Caballero-Reynolds/AFP/Getty Images)
U.S. Secretary of State Mike Pompeo looks on as U.S. Secretary of Defense James Mattis speaks during a press conference at the Australia-U.S. Ministerial Consultations at the Hoover Institution on the campus of Stanford University on July 24, 2018 in Stanford, California. Justin Sullivan/Getty Images
The Ukrainian journalist and member of parliament Serhiy Leshchenko points to a monitor displaying a page of an illegal shadow accounting book of the party of former Ukrainian President Viktor Yanukovych, which showed alleged payments to Paul Manafort, Donald Trump's presidential campaign chairman, during a press conference in Kiev on Aug. 19, 2016. (Sergei Supinsky/AFP/Getty Images)
Afghan Shiite mourners offer funeral prayers for nine victims, who were killed in a suicide attack the previous day, in Kabul on August 16, 2018. NOORULLAH SHIRZADA/AFP/Getty Images
French President Emmanuel Macron and U.S. President Donald Trump look at members of the Fifth Regiment de Cuirassiers ride by in tanks as they attend the annual Bastille Day military parade on the Champs-Elysees avenue in Paris on July 14, 2017. JOEL SAGET/AFP/Getty Images
U.S. Vice President Mike Pence announces the Trump administration's plan to create the U.S. Space Force by 2020 during a speech at the Pentagon August 9, 2018 in Arlington, Virginia. Photo by Chip Somodevilla/Getty Images
Flag draped transfer cases with the remains of American soldiers repatriated from North Korea are seen during a ceremony after arriving to Joint Base Pearl Harbor-Hickam, Honolulu, Hawaii, on August 1, 2018. RONEN ZILBERMAN/AFP/Getty Images
North Korean leader Kim Jong Un celebrates the successful test-fire of the intercontinental ballistic missile Hwasong-14 at an undisclosed location in July 2017.
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