Historically, airborne leaflets have been used as an effective form of psychological warfare. During the Second World War, the Allies dropped packets of leaflets or hydrogen balloons from aircraft over German territory to refute the Nazi regime’s deceptive propaganda. After the Korean War, several non-governmental organizations (NGOs) in South Korea have been using balloons to send materials censored in North Korea to the North Korean people.
In the past month, Chinese state media kept silent on the mass protests in Hong Kong. Internet police and robot censors continue to stop the spread of pictures, videos, and reports about the Hong Kong protests on all social media platforms.
