"We welcome David Lin's release from prison in the People's Republic of China. He has returned to the United States and now gets to see his family for the first time in nearly 20 years," said a State Department spokesperson as cited by Al Jazeera.
US official Jack Sullivan noted that Russia's defence industry is on a wartime footing and with help from Iran, China, North Korea, and is "attempting to undertake the most significant defence expansion since the height of the Cold War."