MiG-19 (Shenyang J-6) was introduced to North Vietnamese People's Air Force in January 1969, more than three years after the first personnel was sent to China to train on this new type.

This course brought them under attack by at least six Chinese MiG-19s (J-6). Were the Americans really violating Chinese airspace or did the communist pilots attack the Americans in the airspace ...

For further detail, I turned to the U.S. Air Force’s Veterans In Blue info page: A July 7, 2023, article in We Are the Mighty adds that “300 rounds from the Phantom lit up the MiG-19 ...