US Bombers Join Japanese Jets for Air Drill Over Sea of Japan

US Bombers Join Japanese Jets for Air Drill Over Sea of Japan

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Japan and the United States carried out a joint military exercise over the Sea of Japan on Dec. 10, underscoring their alliance, Japan’s Ministry of Defense said on Dec. 11.
The drill, which involved advanced fighter jets from Japan and long-range bombers from the United States, came days after Tokyo accused Chinese military aircraft of targeting Japanese jets with radar. It also followed a joint patrol near Japan by Chinese and Russian strategic bombers earlier this week. The exercise preceded defense talks between Tokyo and Washington.

Japan Self-Defense Forces and the U.S. Armed Forces conducted the exercise “amid an increasingly severe security environment surrounding Japan,” the defense ministry said.

It added that the training reaffirmed “the strong will between Japan and U.S. not to tolerate unilateral changes to the status quo by force,” while demonstrating readiness and further strengthening deterrence and response capabilities under the Japan-U.S. alliance.

Japan Air Self-Defense Force units included three F-35 stealth fighters and three F-15 fighters from the 3rd and 6th Air Wings. The U.S. deployed two B-52 strategic bombers.

Japan’s Ministry of Defense did not specify armaments used during the exercise. U.S. B-52 bombers are capable of carrying both conventional and nuclear weapons. The drill focused on tactical exercises, the defense ministry said.

The Sea of Japan, known as the East Sea in Korea, lies between Japan, the Korean Peninsula, and Russia, and is a regular transit area for military aircraft.

Alliance Talks

Japanese Defense Minister Shinjiro Koizumi and U.S. Secretary of War Pete Hegseth held a telephone call on Dec. 12 to discuss regional security.
In a summary released by Japan’s Ministry of Defense, the two exchanged views on the “increasingly severe security situation in the Indo-Pacific region,” including the Dec. 6 radar incident.

Koizumi told Hegseth that Japan would continue surveillance and monitoring around its airspace and waters and respond to unexpected situations “in a calm and resolute manner.”

The pair expressed serious concern over actions that increase regional tensions and agreed to maintain close communication.

Koizumi briefed Hegseth on his November visit to the Sakishima Islands and Japan’s efforts to strengthen defense capabilities.

The two reaffirmed agreements reached during an Oct. 29 defense meeting in Tokyo to accelerate alliance initiatives and said they would arrange to meet in person in the new year.

White House press secretary Karoline Leavitt on Dec. 11 highlighted the strength of U.S. ties with Japan, while also stressing Washington’s desire to maintain working relations with Beijing.
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The 6th Air Wing of Japan Air Self-Defense Force's F-15 fighters hold a joint military drill with the U.S. B-52 bomber over the Sea of Japan, in this handout picture taken by Japan Air Self-Defence Force and on Dec. 10, 2025. Joint Staff Office of the Defense Ministry of Japan/Handout via Reuters
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Leavitt described the relationship between U.S. President Donald Trump and Japanese Prime Minister Sanae Takaichi as phenomenal.

She added that Japan is a great ally of the United States, “as evidenced by their personal relationship and our continued trade relations with Japan.”

Leavitt also addressed U.S. relations with China, saying, “The president also has a good working relationship with [Chinese leader] Xi, which he believes is a good thing for our country.”

She said the president believes the United States should maintain that relationship “while maintaining our very strong alliance with Japan.”

China-Russia Joint Patrol

Japan’s Ministry of Defense said on Dec. 11 that it detected a long-distance joint flight by Chinese and Russian bombers around Japan on Dec. 9.

According to the ministry, two Russian Tu-95 bombers flew from the Sea of Japan toward the East China Sea and rendezvoused with two Chinese H-6 bombers before continuing into the western Pacific near Japan’s Shikoku island.

Four Chinese J-16 fighters joined the bombers between Okinawa’s main island and Miyako-jima Island, while a Russian A-50 airborne early warning aircraft and two Su-30 fighters were also spotted, the ministry said.

Japan scrambled fighters to monitor the activity.

Russia’s Ministry of Defence said in a Dec. 9 statement on Telegram that Russian and Chinese air forces conducted a joint patrol over the Sea of Japan, the East China Sea, and the western Pacific.
The ministry said the flight lasted about eight hours and was conducted “strictly in accordance with international law,” adding that it was not directed against third countries.

Koizumi Rejects China’s Interference Claim

Chinese state-run Xinhua News Agency reported on Dec. 10 that Japanese military aircraft repeatedly approached Chinese training zones and disrupted exercises.

The report followed remarks on Dec. 7 by Chinese navy spokesperson Senior Col. Wang Xuemeng, who accused Japan of intruding into areas designated for Chinese training.

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Japan's Defense Minister Shinjiro Koizumi speaks during a press conference at the Ministry of Defense in Tokyo on Dec. 7, 2025. Kazuhiro Nogi/Reuters
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Koizumi rejected those claims on Dec. 10, saying Japan’s aircraft acted professionally.
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