HONG KONG - JULY 07:  China's first aircraft carrier Liaoning aircraft carrier arrives on July 7, 2017 in Hong Kong, Hong Kong. China's first aircraft carrier, the Liaoning, made a five-day port call in Hong Kong over the weekend to mark its 20th anniversary of the city's handover to Chinese rule. The military allowed 2,000 Hong Kongers aboard the only in-operation aircraft carrier of China for the first time as its been reported the presence of the carrier is a show of military force in Hong Kong, days after China President Xi Jinping warned the city against independence forces.  (Photo by Keith Tsuji/Getty Images)