US-Taiwan Cooperation · Full chronicle and history

According to sentinel surveillance data from the Chinese Center for Disease Control and Prevention, in the 29th week of 2026 (July 13 to 19), the COVID-19 test positivity rate in China surpassed that of influenza, remaining the leading respiratory pathogen for several consecutive weeks.

In the first half of 2026, the proportion of Chinese homeowners over the age of 60 listing their properties for sale soared to 22.7%, a significant increase from 11.3% in 2022.

On September 18, the United States officially signed the Graham Act, comprehensively strengthening sanctions against Russia, extending relevant sanctions against Iran, and clarifying that secondary tariffs of up to 100% can be imposed on third countries importing Russian oil and natural gas, which prompted a response of opposition from the Ministry of Commerce of China.

According to a Reuters report on September 17, Japan and Taiwan are stepping up communication with the U.S. amid concerns that Trump might sacrifice Taiwan's interests for economic and trade commitments during the anticipated September 24 meeting with Xi Jinping. Japan has already dispatched officials to the U.S. to secure a meeting between Prime Minister Sanae Takaichi and Trump, and Taiwan has also expressed its position to the U.S. side.

The first two MQ-9B SeaGuardian drones sold by the United States to Taiwan conducted their maiden test flights in Taiwan's eastern airspace on September 14. This model possesses real-time search and patrol capabilities both above and below the sea surface, with a monitoring radius of approximately 360 kilometers.

US defense company L3Harris issued a press release announcing that it has completed the production of the first 35 sets of Viper Shield electronic warfare systems specifically designed for F-16V fighter jets, and the system has currently received orders for 233 sets from 8 countries and regions, including Taiwan.

The US think tank Defense Priorities has released a report concerning Taiwan, South Korea, Japan, and the Philippines, suggesting that the US shift its military strategic center from the first island chain to the second island chain and withdraw approximately 90,000 troops stationed in first island chain countries to the second island chain. The report also advocates for the US to shift its stance on Taiwan from strategic ambiguity to a policy of non-intervention, meaning the US military would not intervene in the event of a conflict in the Taiwan Strait. The report argues that China is already the hegemon in the Indo-Pacific region, that the US should no longer bear security responsibilities for allies in the region, and advocates for relevant countries to accept China's regional dominance.

On the 50th anniversary of the Tangshan earthquake, CCP leader Xi Jinping was absent from the commemorative activities, with Premier Li Qiang attending on his behalf to conduct inspections, offer condolences, and present a flower basket.

Ukrainian President Volodymyr Zelenskyy stated that he has convened a 'deep strike' meeting and updated the list of priority targets for long-range sanctions against Russia, with Ukrainian military strike capabilities now exceeding 3,000 kilometers.

Former American Institute in Taiwan (AIT) Director Brent Christensen wrote an article on the Brookings Institution website stating that current U.S.-Taiwan relations are at their strongest and most comprehensive point since the establishment of diplomatic ties in 1979.

During the UN General Assembly in September 2025, Ukrainian President Zelenskyy warned the Russian leadership that Ukraine knows the locations of their bunkers.

In 2025, China's annual birth population was only 7.92 million, hitting the lowest record since the implementation of the two-child policy in 2016.

In the early morning of July 28, 1976, a 7.8-magnitude earthquake struck Tangshan, Hebei Province, causing massive casualties and property damage.