VIENTIANE, LAOS — U.S. Secretary of State Antony Blinken Friday warned China against military provocations toward Taiwan, following Beijing’s strong reaction to an annual speech by the leader of the self-ruled democracy. “I can tell you that with regard to the so-called Ten Ten speech, which is a regular exercise, China should not use it in any fashion as a pretext for provocative actions,” Blinken told reporters during a press conference in Vientiane, Laos. He was referring to October 10, known as Double Ten Day, when Taiwan celebrates the founding of the Republic of China in 1912, just months after an uprising that began on October 10, 1911. The People’s Republic of China celebrates its national day on October 1, marking the founding of the country in 1949. China has continued to ramp up its military threats against Taiwan, following President Lai Ching-te’s Thursday speech, which rejected China’s claim of sovereignty over the island. Blinken was in Vientiane for meetings with leaders from the Association of Southeast Asian Nations and participated in the East Asia Summit. He said there is a strong desire among all ASEAN countries, along with others present, to maintain peace and stability across the Taiwan Strait, with neither side taking actions that undermine the status quo. Earlier on Friday, Taiwan detected 20 Chinese military aircraft and 10 naval vessels around Taiwan. Thirteen of the aircraft crossed the median line and entered Taiwan’s northern and southwestern Air Defense Identification Zone, according to a posting on social media platform X by Taiwan’s defense ministry. Between Wednesday and Thursday, Taiwan also detected 27 Chinese military aircraft, nine naval vessels, and five official ships. In Beijing, Chinese officials said Taiwan “has no so-called sovereignty.” Mao Ning, a spokesperson for China’s Foreign Affairs Ministry, slammed Lai, accusing him of having “the ill intention of heightening tensions in the Taiwan Strait for his selfish political interest.” Taiwan has been self-ruled since 1949, when Mao Zedong’s communists took power in Beijing after defeating Chiang Kai-shek’s Kuomintang nationalists in a civil war, prompting the nationalists’ relocation to the island. Washington switched its diplomatic recognition from Taipei to Beijing to counter the then-Soviet Union in 1979. Since then, relations between the U.S. and Taiwan have been governed by the Taiwan Relations Act that Congress passed in April 1979, under which the U.S. provides defense equipment to Taiwan. In September, Taiwan President Lai said if China’s claims over Taiwan are truly based on concerns about territorial integrity, it should also seek to reclaim the 600,000 square kilometers of land it ceded to Russia in the 19th century — an area almost the size of Ukraine.