The Taiwanese Ministry of Defense said the aircraft comprised of 8 Shenyang J-11 combat aircrafts, 6 Shenyang J-16 combat aircrafts, four Chengdu J-10 fighter jets, two Sukhoi SU-30 fighter jets, one Shaanxi Y-8 anti-submarine warfare (Y-8 ASW) plane, one Shaanxi electronic warfare aircraft (Y-8 EW), four Shaanxi Electronic Intelligence Spotter planes (Y-8 Electronic Intelligence), as well as two KJ500 aeroborne early warning aircrafts and controllers (KJ-500 AEEW&C), according to Taiwan News.
Bonnie Glaser, director of the Asia Program at the German Marshall Fund tweeted that this marked the very first time Su-35 aircraft have flown through Taiwan's ADIZ.
However, the Taiwanese reporter tweeted that the Su-35 could have been in Taiwan's ADIZ in the past four years, in May of 2018.
ADIZ refers to the area around the national airspace of a country where any aircraft that enters the country might be required to identify themselves and share flight plans, or activate defense mechanisms of the country in question.
China has intensified its attacks on Taiwan's ADIZ in recent years. Monday's incursion was the second-largest single-day infiltration by Chinese military aircraft within Taiwan's ADIZ this year, as per Taiwan News.
On January 23rd, 39 PLAAF aircraft were spotted in Taiwan's ADIZ. This was the highest number of aircraft that came in on the same day in that year. The most extensive incursion ever was 56 aircraft that entered on the 4th of October, 2021 according to the publication.
The Taiwanese Ministry of National Defense scrambled combat patrol aircraft, issued radio alerts, and launched air defense missiles, according to its website.
The Chinese invasion came on the same day Sen. Tammy Duckworth (D-IL) visited Taiwan during a three-day surprise trip that is sure to uproar Beijing, who insists that Taiwan is part of China and not a distinct country. However, Taiwan considers itself an independent country, and has been self-governing since 1949.