The incident, which involved a Chinese Navy J-11 fighter jet and a U.S. air force RC-135 aircraft, took place on Dec. 21, the U.S. military said in a statement.A U.S. military spokesperson said the Chinese jet came within 10 feet of the plane's wing, but 20 feet from its nose, which caused the U.S. aircraft to take evasive maneuvers.In a meeting with his Chinese counterpart in November, U.S. Defense Secretary Lloyd Austin raised the need to improve crisis communications, and also noted what he called dangerous behavior by Chinese military planes.Despite tensions between the United States and China, U.S. military officials have long sought to maintain open lines of communication with their Chinese counterparts to mitigate the risk of potential flare-ups or deal with any accidents.In June, Canada's military accused Chinese warplanes of harassing its patrol aircraft as they monitored North Korea sanction evasions, sometimes forcing Canadian planes to divert from their flight paths."