Caption

A billboard reading '5G is here' on day one of the Mobile World Congress (MWC) Shanghai 2019 at the Shanghai New International Expo Center on June 26, 2019. (Visual China Group via Getty Images)

Caption

Vandenberg Air Force Base ICBM test launch May 3, 2017 (U.S. Air Force photo by Airman 1st Class Daniel Brosam)

Caption

(Getty Images)

Caption

(GETTY IMAGES)

Caption

The U.S. Army and South Korean military responded to North Korea's missile launch with a combined ballistic missile exercise on July 5, 2017, into South Korean waters. (Photo by South Korean Defense Ministry/Getty Images)

Caption

Germany's Chancellor Angela Merkel and U.S. President Donald Trump speak together on the first day of the G7 Summit, on June 8, 2018 in La Malbaie, Canada. (Leon Neal/Getty Images)

Caption

Donald Trump looks at Vladimir Putin at the meeting center of the G20 summit in Buenos Aires on November 30, 2018 (Photo by Ralf Hirschberger/picture alliance via Getty Images)

Caption

U.S. President Donald Trump and China's President Xi Jinping speak during a joint statement in Beijing on November 9, 2017. (Photo credit: NICOLAS ASFOURI/AFP/Getty Images)

Caption

Chinese President Xi Jinping meets with Israeli Prime Minister Benjamin Netanyahu on May 9, 2013 in Beijing. Kim Kyung-Hoon-Pool/Getty Images.