Strait Thunder–2025A


The Strait Thunder–2025A was a military exercise organized by the Eastern Theater Command of the People's Liberation Army of the People's Republic of China from 1–2 April 2025, involving the command's land, sea, air, and rocket forces. The exercise was conducted in the vicinity of the Matsu Islands and the main island of Taiwan. The drill on 2 April was held in the central and southern parts of the Taiwan Strait. This was China's seventh major military drill targeting Taiwan since August 2022.

Background

On 26 February 2025, shortly before the exercise, the People's Liberation Army Navy conducted an unannounced exercise off the coast of Kaohsiung and Pingtung. The exercise included live-fire drills. At least 32 aircraft and several warships participated in the exercise, of which 22 crossed the Taiwan Strait Median Line and its extension, entering the airspace north and geography of Taiwan. This exercise was not announced in advance, and the code name of the operation was not made public. It was widely regarded as a simulated surprise attack. The Republic of China's navy, army, and air force were placed on alert. The next day, the Premier of the Executive Yuan of the Republic of China, Cho Jung-tai, expressed hope that mainland China would exercise restraint in such actions, and instructed the armed forces to remain vigilant against various developments in the surrounding areas. The Ministry of National Defense of the Republic of China also condemned the PLA's behavior. On the same day, Senior Colonel Wu Qian, Director of the Information Bureau of the Ministry of National Defense and spokesman for the Ministry of National Defense, criticized the US attempt to "use Taiwan to contain China" and the Taiwan Democratic Progressive Party authorities' attempt to "rely on the US to seek independence" and "resist unification by force" at a regular press conference when answering questions about the recent Taiwan military "Han Kuang Exercise" exercise. He said to the Taiwan side, "Trying to stop a chariot with a mantis arm will only lead to its own destruction. Sooner or later, we will come to take you away."
On 13 March, President Lai Ching-te of the Republic of China delivered a speech after a national security meeting held on the eve of the 20th anniversary of the 2005 Anti-Secession Law. In addition to proposing 17 response strategies for the national security and united front threats facing Taiwan, he also called China a "foreign hostile forces" as defined by the Anti-Infiltration Act.
On 1 April, Minister of National Defense of the Republic of China Gu Lixiong stated that since 29 March, the dynamics of the aircraft carrier Shandong formation and other aircraft and ships have been gradually grasped, and yesterday they entered the national army's "response zone", indicating that the People's Liberation Army had begun preparing for military operations since the end of March.

Military Exercise Process

1 April

On 1 April, Zhu Anqing, spokesperson for the East China Sea Branch of the China Coast Guard, stated that multiple Coast Guard fleets organized law enforcement patrols in the waters around Taiwan, and conducted exercises on spot inspections, arrests, interception, and detention. The Fujian Coast Guard organized a fleet of ships to conduct comprehensive law enforcement patrols in the waters near Dongyin Island and Wuqiu Island.
On the morning of 1 April, the Eastern Theater Command Media Center released three posters in Traditional Chinese characters, with themes such as "Advance," "Deterrence and Closure," and "Destruction and Paralysis"., as well as an animation titled "Shell," which showed how Lai Ching-te used "peace," "freedom," "democracy," and "prosperity" as a cover to "de-Chiangize" his country, formulate the "17 National Security Regulations" of "green terror" to persecute political opponents, and increase military purchases and rely on the United States to seek "independence" to sell out Taiwan. In the animation, Lai Ching-te was drawn up as a worm roasted on fire. This was the first time since Chiang Kai-shek that the Chinese Communist Party had vilified a major Taiwanese leader. On the same day, the Eastern Theater Command released an animation titled "Exorcising Demons and Demons", which used material from the popular 2024 game Black Myth: Wukong. The video showed Taipei 101 and Hankou Street, as well as satellite positioning locked on Taiwan, and simulated missile attacks on Zhongzheng District in Taipei City, where the Presidential Palace of the Republic of China is located. This was the first time that the People's Liberation Army had clearly released its attack target. However, Taiwan media outlet China Times believed that the video had a stronger flavor of "internal propaganda". The exercise video released by the official media showed for the first time the so-called H-6K bomber carrying the Eagle Strike 21 anti-ship missile, which is considered to be able to effectively prevent US military intervention. According to data from the Ministry of National Defense of the Republic of China, on that day, at least 76 PLA military aircraft and 15 warships and 4 government ships approached Taiwan.

2 April

Just when the outside world generally believed that this was a sudden, unannounced, and code-named military exercise like the one in February 2024. On 2 April, the second day of the exercise, the Eastern Theater Command officially announced the code name of this exercise, "Strait Thunder-2025A.". However, the exercise started on 2 April and the scope of the exercise only included "relevant waters in the central and southern parts of the Taiwan Strait". The training subjects were "verification and identification, warning and expulsion, interception and detention, etc.", which was different from the time, scope and subjects announced previously. It can be seen that "Strait Thunder" was not the code name of the entire exercise, and the exercise on 1 April did not fall into the category of "Strait Thunder".
On 2 April, the Eastern Theater Command of the People's Liberation Army conducted a long-range live-fire exercise in the relevant waters of the East China Sea in accordance with the exercise plan, striking simulated targets such as important ports and energy facilities. The Shandong aircraft carrier formation was in the sea and air space east of Taiwan Island, conducting exercises with naval and air force forces on subjects such as ship-aircraft coordination, regional air control, and sea and land strikes. Zhang Chi, a professor at the National Defense University of the People's Liberation Army National Defense University (China), said that the Shandong aircraft carrier formation's participation in the exercise showed that the PLA's ability to respond quickly, strike with precision, and coordinate systems is constantly improving. The presence of the aircraft carrier fleet in the area east of Taiwan helps to militarily block the lifeline of energy resource imports, the support line for obtaining foreign aid, and the escape line for evading sanctions for the "independence movement|Taiwan independence]" forces. Later, the Eastern Theater Command simulated the use of PHL-16 to attack the Yong'an LNG Terminal in Kaohsiung. As a result, the trajectory of the cargo ship Ebisu transporting natural gas to the Taichung LNG Terminal was suspected to be affected by the exercise. The Ministry of Economic Affairs of the Republic of China clarified this. However, it is certain that the Eastern Theater Command has listed the energy facilities of the Republic of China as priority targets for destruction. In addition, the People's Liberation Army also conducted long-range live-fire exercises in the East China Sea. The Ministry of National Defense of the Republic of China stated that on that day, at least 59 PLA aircraft and 23 warships approached Taiwan. The images released by the Coast Guard Administration (Taiwan) at a press conference confirmed that the China Coast Guard Ship 2305 entered the 24-nautical-mile zone adjacent to Taiwan Island. Yuyuan Tantian, a social media account affiliated with the China Central Television, said that the closest distance of the drill with Taiwan was less than 20 nautical miles.
On 2 April, the Eastern Theater Command released a poster titled "Lockdown". The official account of the People's Liberation Army News and Communication Center, "Jun Zhengping Studio", published a commentary titled "Taiwan independence means war, don't say I didn't warn you". The China Coast Guard released a themed video titled "Clean Sea" on law enforcement and control around Taiwan Island.
Taiwan current affairs commentator Julian Kuo analyzed that because the United States is busy launching a tariff war and dealing with the Russian invasion of Ukraine, and CCP General Secretary Xi Jinping will visit Russia on 9 May and attend the Victory Day commemoration activities, there is not enough time to create a big event, so this military exercise is more like a compromise. The final move is expected to be on 20 May, one year after Lai Ching-te's inauguration. At that time, Lai Ching-te may make remarks similar to "the two sides of the Taiwan Strait are not subordinate to each other" and "hostile forces abroad", and the People's Liberation Army will once again launch a partial blockade of Taiwan.

3 April

On 3 April, the People's Liberation Army Daily published a commentary signed by "Jun Sheng" entitled "Separatist provocations will be severely punished, and the reunification of the motherland will surely be realized", directly calling Lai Ching-te a "trouble maker", "danger maker", and "war maker"; the People's Daily published a commentary signed by "Zhong Yiping" entitled "Resolutely punish Lai Ching-te and do our utmost to defend peace in the Taiwan Strait", stating that "every time the Lai Ching-te administration provokes, military deterrence will be further advanced".
At 6:47 a.m. on 3 April, a U.S. Navy P-8 Poseidon maritime patrol aircraft was warned by a People's Liberation Army Navy warship when it flew over the airspace near the waters off the Hengchun Peninsula in Pingtung County, Taiwan, saying: "You have entered the 24-nautical-mile contiguous zone of Taiwan Province, [People's Republic of China|China Taiwan], adjust your route and leave." The crew of the P-8 Poseidon responded: "We are conducting a legitimate military operation in international airspace.".

Reactions

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  • CNN commented that the Military exercises and drills of China|military exercise was a test of the US's resolve. The article quoted Taiwan's analysis that the military exercise was timed to coincide with the end of US Defense Secretary Pete Hegseth's first trip to Asia and the resumption of the trade war|US-China trade war] and trade negotiations. Taiwan became an excuse for the military exercise, but Beijing intended to send a signal to Washington.
  • U.S. State Department spokeswoman Tammy Bruce issued a statement saying that China's aggressive military activities and rhetoric toward Taiwan will only increase tensions and put the region's security and world prosperity at risk. In the face of China's intimidation tactics and destabilizing behavior, the United States' enduring commitment to our allies and partners, including Taiwan, continues. The United States supports Peace and stability in the Taiwan Strait|peace and stability across the Taiwan Strait and opposes unilateral changes to the status quo, including through force or coercion.
  • White House Press Secretary Karoline Leavitt responded at a White House press briefing that the United States reaffirms its opposition to any unilateral attempt to change the status quo in the Taiwan Strait by force or coercion. Donald Trump, the President of the United States, emphasized the importance of maintaining peace across the Taiwan Strait. The U.S. encourages the peaceful resolution of cross-strait issues. The White House National Security Council has issued a briefing on the matter and also reiterated its opposition to any unilateral attempts to alter the status quo through coercive means—this is a direct statement from the national security apparatus.
  • A spokesperson for the American Institute in Taiwan responded in an interview with the Central News Agency that the United States is closely monitoring China's Military activities of China near Taiwan|military activities around Taiwan. China's increasing use of military coercion will only escalate tensions and undermine peace and stability across the Taiwan Strait. Once again, China has demonstrated itself to be an irresponsible actor, showing no concern for the risks posed to regional security and prosperity. There is no justification for China to carry out threatening and military coercive actions around Taiwan. The United States will continue to support Taiwan in the face of military, economic, informational, and diplomatic pressure from China.
  • On 26 March, U.S. China military expert and Department of Defense advisor Oriana Skylar Mastro stated during a Senate hearing that the PLA may be ready to take Taiwan within the next three to four years, aiming to seize control within three to four weeks. She recommended that Taiwan increase its defense spending to around 3.4% of its GDP and develop the capability to delay a PLA amphibious landing for at least 30 days. Some Taiwanese netizens responded critically, saying, "The politicians would flee in three days," and "Ukraine waited for three years and saw no one show up."
  • On 1 April, Japan's Chief Cabinet Secretary Yoshimasa Hayashi stated that the Japanese government is highly concerned about the People's Liberation Army's recent military exercises and is actively collecting and analyzing intelligence. Japan has also conveyed its concerns to China. The peace and stability of the Taiwan Strait is extremely important to the international community, including Japan. Due to the frequent military activities around Taiwan by China in recent years, the Japanese government has increased vigilance and surveillance over the surrounding seas and airspace of Japan, making thorough preparations.
  • A spokesperson for the European External Action Service issued a statement saying that China's large-scale military exercises around Taiwan are escalating tensions across the Taiwan Strait. The peace and stability of the Taiwan Strait hold strategic significance for both regional and global security and prosperity. The European Union has a direct interest in maintaining the Status quo in the Taiwan Strait. The EU opposes any unilateral actions to change the status quo through force or coercion. The EU calls on all parties to exercise restraint and avoid actions that could further escalate tensions, emphasizing that these issues should be resolved through cross-strait dialogue.
  • On 2 April, the European Parliament adopted a resolution as part of its assessment report on the Common Foreign and Security Policy of the European Union. The resolution contains multiple condemnations of China's coercive actions in the Taiwan Strait and the South China Sea. It also criticizes CCP General Secretary Xi Jinping for refusing to renounce the use of force against Taiwan. The resolution emphasizes that "achieving unification through coercive measures" violates International law.
  • At a Federal Press Conference |German federal press conference, German Federal Foreign Office spokesperson Kathrin Deschauer responded that Germany is very concerned and is closely monitoring the situation. This pertains to a new large-scale military exercise conducted by the People's Liberation Army and the China Coast Guard around Taiwan. She stated that such exercises, especially those announced with little notice, increase tensions in the region and certainly affect the stability of the Taiwan Strait. Germany's objective is to maintain peace and stability in the Taiwan Strait, which holds strategic significance not only for Europe, but also beyond the region. This concerns international security and prosperity, which directly affects both Germany's and Europe's interests. Therefore, Germany has a direct interest in preserving the status quo in the Taiwan Strait. Any changes in the Taiwan Strait must come through peaceful means and mutual agreement. Germany expects the People's Republic of China to act as a responsible international actor, rather than taking actions that further increase tensions and destabilize regional peace.
  • The German Federal Foreign Office also issued a statement on the social media platform X, expressing concern over the rising tensions caused by China's military exercises around Taiwan. The statement emphasized that the stability of the Taiwan Strait is crucial for both regional and global security, and it also affects Europe's prosperity. It reiterated that the Status quo can only be changed through peaceful means and mutual agreement, not by force or coercion.
  • A spokesperson for the Foreign, Commonwealth and Development Office of the United Kingdom issued a statement expressing concern over China's military exercises near Taiwan. The statement described the exercises as part of a broader pattern of activity that is escalating tensions and poses a risk of dangerous escalation in the Taiwan Strait.
  • The UK reaffirmed its clear interest in the peace and stability of the Taiwan Strait, emphasizing that it is essential for global prosperity. The UK also reiterated its support for a Free and Open Indo-Pacific. The statement stressed that the Taiwan issue should be resolved peacefully through constructive dialogue between the people on both sides of the Taiwan Strait, free from threats, force, or coercion.
  • Global Affairs Canada issued a statement on the social media platforms X and Facebook, expressing deep concern over China's recent military exercises near Taiwan. The statement noted that these provocative actions have escalated tensions, undermined regional stability, and impacted global security and prosperity.Canada called on China to resolve cross-strait differences through peaceful means, emphasizing the importance of dialogue over confrontation.
  • Swedish Minister for Defence Pål Jonson responded in writing to a parliamentary inquiry, stating that China's actions toward Taiwan are concerning and that military threats are unacceptable. He emphasized that differences across the Taiwan Strait must be resolved peacefully and with respect for the will of the people of Taiwan.Jonson further stated that it is in Sweden's interest to help prevent states with military power from undermining the rules-based international order and violating international norms and regulations. He noted that Sweden is in dialogue with its NATO allies on how NATO can strengthen collective defense in the Euro-Atlantic area, which falls within NATO's area of responsibility.In addition, Sweden maintains strong bilateral cooperation with partners in the Indo-Pacific region and is working within the frameworks of the European Union and NATO to enhance defense policy cooperation with those regional partners.
  • The Australian Department of Foreign Affairs and Trade issued a statement expressing deep concern over China's military and coast guard exercises near Taiwan. Australia strongly opposes actions that increase the risk of accidents, miscalculation, and escalation. As previously stated, these military drills are disproportionate and destabilizing.Disputes should be resolved through dialogue, not through threats, the use of force, or coercion. Australia does not want to see any unilateral changes to the status quo across the Taiwan Strait. Peace and stability across the Strait are in the interest of all.Australian officials have raised their concerns directly with their Chinese counterparts.
  • On 1 April, Chief of Staff of the Armed Forces of the Philippines General Romeo S. Brawner Jr. warned the Armed Forces of the Philippines to prepare for the possibility of a mainland Chinese attack on Taiwan. He stated that the Philippines would be "at the forefront of rescue operations" in such a scenario. General Brawner emphasized that if a conflict breaks out in the Taiwan Strait, Manila would inevitably be drawn into the situation, and preparations must be made to evacuate the approximately 250,000 Filipino workers currently residing and working in Taiwan.