patrol

Japan and South Korea scrambled jets on Tuesday in response to a joint Chinese-Russian bomber patrol over international waters near both of those nations. Though part of an annual bilateral exercise, the flights come as tensions between China and Japan are heightened over the latter’s increasing signals of support for Taiwan.

Two Russian Tu-95 Bear turboprop bombers flew south from the Sea of Japan into the East China Sea, the Japanese Defense Ministry (MoD) said. After flying between west of Japan and southeast of South Korea, they joined two Chinese H-6 series bombers near Okinawa Japan.

“They then conducted a long-distance joint flight from the East China Sea to the Pacific Ocean off the coast of Shikoku,” according to the ministry.

The bombers were joined by four Chinese J-16 Flanker multirole fighter derivatives “when these bombers flew back and forth between Okinawa Island and Miyako Island,” the Japanese MoD noted. The Bear bombers later flew back along the same route north into the Sea of Japan while the Chinese jets flew back toward China.

In addition to those flights, the Japanese said one Russian A-50 Mainstay early warning and control aircraft and two Russian Su-30 Flanker fighters were also spotted north of Japan in the Sea of Japan, the MoD stated.

“In response, fighter jets from the Japan Air Self-Defense Force’s Southwest Air Defense Command and other units were scrambled,” the MoD explained, without providing details about where jets flew.

South Korea also sent fighters aloft as the Chinese-Russian joint flight briefly flew into its Air Defense Identification Zone (KADIZ), according to the Yonhap News Agency.

“Two Chinese military planes and seven Russian aircraft successively entered the KADIZ at around 10 a.m. prompting the military to dispatch Air Force fighter jets in preparation for a possible accidental situation,” the Joint Chiefs of Staff (JCS) said.

The JCS did not identify what kind of aircraft took part in the joint Chinese-Russian flight, but bombers and fighters “intermittently entered and left the KADIZ for about an hour before completely retreating from the air defense zone.”

Joint Chinese-Russian flights in this area are not new. Since 2019, the two countries have sent their military planes into the KADIZ once or twice a year during joint exercises, without prior notice, Yonhap explained.

The last such flight took place in November 2024 when “11 military planes from both China and Russia entered the KADIZ together,” Yonhap noted.

As we previously reported, the first such flight took place in June 2019 and resulted in South Korean jets firing about 360 20mm cannon shells in a series of warning shots after a Russian Mainstay violated airspace South Korea claims above a small group of islets, which it refers to as Dokdo. Japan also claims these as its national territory, calling them collectively Takeshima, and registered its own complaint at the time that the Mainstay had violated Japanese national airspace.

While this was the 10th joint flight, it came as China and Japan are locked in an intensifying dispute over Japanese Prime Minister Sanae Takaichi’s comments that any Chinese attack on Taiwan would be considered an existential threat to Tokyo. Beijing considers the breakaway island nation to be part of China and has made it clear that it will take back Taiwan peacefully or through military means. Meanwhile, it sees growing militancy from Japan, whose armed forces are designed for self-protection in the wake of World War II, as an increasing threat.

The flareup manifested itself on Saturday, when Chinese J-15 fighters launched from the aircraft carrier Liaoning near Okinawa and locked radar on two Japanese F-15 Eagle fighters. While both sides acknowledge the incident took place, there is a dispute about who caused it and how it was handled.

Japan claims its fighters were targeted while flying a safe distance from the Liaoning and its escorts, which were conducting training missions in the area. China claims that the Japanese fighters were interfering with the training, which sparked the incident.

The issue carried into Tuesday, when China released what it says was a call between its carrier group and the Japanese warning them away. Japan had previously complained China did not answer a deconfliction hotline.

All this comes amid growing Chinese consternation about Japan’s plans to place additional weaponry on Yonaguni Island, located about 70 miles from Taiwan.

Last week, the Japanese MoD announced plans “to deploy an electronic warfare [EW] air-defense unit capable of disrupting aircraft communications on the island of Yonaguni in Okinawa prefecture,” the Japanese Nikkei news outlet reported. The publication did not identify what type of EW system. 

In November, we noted that Japan wanted to install an air defense system on Yonaguni that was likely the beginning of an increasing militarization of the island given its proximity to Taiwan. You can read more about that in our initial story here.

These flights are part of an increasing level of military cooperation between China and Russia. Last year, two Chinese H-6-series aircraft flew with a pair of Russian Bear bombers through a portion of the Air Defense Identification Zone (ADIZ) around Alaska. It marked the first time Chinese H-6s of any kind have operated in this part of the world. Similar maritime flotillas have occurred at an increasing rate, as well.

While the joint Chinese-Russian bomber patrol near Japan and South Korea has become routine and is planned to continue, the growing tensions between Beijing and Tokyo show no signs of abating.

Contact the author: howard@thewarzone.com

Seoul’s Joint Chiefs of Staff said Russian, Chinese planes entered its air defence zone during the joint exercise.

South Korea and Japan separately scrambled fighter jets after Russian and Chinese military aircraft conducted a joint air patrol near both countries.

Seven Russian and two Chinese aircraft entered South Korea’s Air Defence Identification Zone (KADIZ) at approximately 10am local time (01:00 GMT) on Tuesday, according to the office of the Joint Chiefs of Staff in Seoul.

The planes, which included fighter jets and bombers, were spotted before they entered the KADIZ – which is not territorial airspace but where planes are expected to identify themselves – and South Korea deployed “fighter jets to take tactical measures in preparation for any contingencies”, according to reports.

The Russian and Chinese planes flew in and out of the South Korean air defence zone for an hour before leaving, the military said, according to South Korea’s official Yonhap news agency.

On Wednesday the defence ministry said that a diplomatic protest had been lodged with representatives of China and Russia over the entry of their warplanes into South Korea’s air defence zone.

“Our military will continue to respond actively to the activities of neighbouring countries’ aircraft within the KADIZ in compliance with international law,” said Lee Kwang-suk, director general of the International Policy Bureau at Seoul’s defence ministry.

Japan separately deployed military aircraft to “strictly implement” air defence measures “against potential airspace violations”, following the reported joint patrol of Russia and China, Japanese Minister of Defence Shinjiro Koizumi said.

In a statement posted on social media late on Tuesday, Koizumi said two Russian “nuclear-capable Tu-95 bombers” flew from the Sea of Japan to the Tsushima Strait, and met with two Chinese jets “capable of carrying long-range missiles”.

At least eight other Chinese J-16 fighter jets and a Russian A-50 aircraft also accompanied the bombers as they conducted a joint flight “around” Japan, travelling between Okinawa’s main island and Miyako Island, Koizumi said.

“The repeated joint flights of bombers by both countries signify an expansion and intensification of activities around our country, while clearly intending to demonstrate force against our nation, posing a serious concern for our national security,” he added.

9日（火）の午前から夕方にかけて、ロシアの核兵器搭載可能な爆撃機Tu-95×2機が日本海→対馬海峡を飛行し、中国の長射程ミサイルを搭載可能な爆撃機H-6×2機と東シナ海において合流したあと、沖縄本島・宮古島間→太平洋の四国沖まで我が国周辺を共同飛行しました。… pic.twitter.com/6RcWJbM99b

— 小泉進次郎 (@shinjirokoiz) December 9, 2025

Koizumi’s statement comes just days after he accused Chinese fighter jets on Sunday of directing their fire-control radar at Japanese aircraft in two separate incidents over international waters near Okinawa.

On Monday, Japan’s Ministry of Defence said that it had monitored the movements of the Chinese aircraft carrier Liaoning and accompanying support vessels near Okinawa since Friday, adding that dozens of takeoffs and landings from Chinese aircraft on the carrier were monitored.

Japan said it was the “first time” that fighter jet operations on a Chinese aircraft carrier had been confirmed in waters between Okinawa’s main island and Minami-Daitojima island to the southeast.

China’s Ministry of National Defence said on Tuesday that it had organised the joint air drills with Russia’s military according to “annual cooperation plans”.

The air drills took place above the East China Sea and western Pacific Ocean, the ministry said, calling the exercises the “10th joint strategic air patrol” with Russia.

Moscow also confirmed the joint exercise with Beijing, saying that it had lasted eight hours and that some foreign fighter jets followed the Russian and Chinese aircraft.

“At certain stages of the route, the strategic bombers were followed by fighter jets from foreign states,” the Russian Defence Ministry said.

Since 2019, China and Russia have regularly flown military aircraft near South Korean and Japanese airspace without prior notice, citing joint military exercises.

In November 2024, Seoul scrambled jets as five Chinese and six Russian military planes flew through its air defence zone. In 2022, Japan also deployed jets after warplanes from Russia and China neared its airspace.

China and Russia have expanded military and defence ties since Moscow’s full-scale invasion of Ukraine nearly four years ago. Both countries are also allies of North Korea, which is seen as an adversary in both South Korea and Japan.