Curtis, speaking alongside fellow lawmakers including Jeanne Shaheen, said Taiwan should draw lessons from Hong Kong, where Beijing imposed a sweeping national security law in 2020 following unrest, a move critics say curtailed freedoms.

The visit comes as President Lai Ching-te seeks approval for an additional $40 billion in defence spending, a proposal backed by Washington but currently stalled in the opposition-controlled parliament.

Taiwan’s government says the funding is necessary to strengthen deterrence against China, which claims the island as its territory. Opposition parties have expressed support in principle for defence measures but have resisted approving what they describe as open-ended commitments.

Curtis said Taiwan risked misjudging Beijing’s intentions if it ignored the trajectory of Hong Kong since its return to Chinese rule in 1997 under a framework guaranteeing autonomy.“My biggest worry for Taiwan is that they underestimate the intentions of China,” Curtis said, urging vigilance despite aspirations for peace.

China has simultaneously stepped up engagement with Taiwan’s opposition. Beijing has invited Cheng Li-wun, leader of the Kuomintang, to visit, a trip she has described as a “peace mission.”

Taiwan’s Mainland Affairs Council said China’s objective of annexation had not changed and cautioned against what it called “illusions” about peace, reflecting ongoing tensions across the Taiwan Strait.

In a statement released late on Saturday, the ministry’s Hong Kong office said Commissioner Cui Jianchun met U.S. Consul General Julie Eadeh on March 27 and conveyed “strong dissatisfaction and firm opposition” to the alert, calling on the United States to stop intervening in Hong Kong matters “in any form.

”The dispute follows recent amendments to Hong Kong’s national security enforcement rules, which make it an offence in national security cases to refuse to provide passwords or other assistance to access electronic devices.

In response, the U.S. Consulate General in Hong Kong issued a public alert on March 26 advising U.S. citizens to contact the consulate if they are arrested or detained in connection with the updated rules.

The alert highlighted concerns over the expanded scope of enforcement powers under the revised framework.The U.S. Consulate General did not immediately respond to a request for comment outside business hours.

The exchange underscores ongoing tensions between Beijing and Washington over Hong Kong’s governance and legal environment, particularly since the introduction of national security measures that foreign governments have said could affect civil liberties and legal protections.

Chinese authorities have consistently defended the measures as necessary to safeguard stability and national sovereignty, rejecting external criticism as unwarranted interference.

The measures expand enforcement powers under the Hong Kong national security law, introduced by Beijing in 2020 following large-scale pro-democracy protests in the financial hub.

The latest amendments mandate that individuals hand over “any password or other decryption method” needed for police to access electronic devices believed to contain evidence.

The rules apply not only to those under investigation for national security offences but also to individuals who own, possess, or are authorized to access the relevant devices, as well as anyone with knowledge of the required passwords or decryption tools.

Failure to comply constitutes a criminal offence, marking a shift from previous practice, where refusal to unlock devices was not treated as obstruction.The amendments were formulated under the direction of Chief Executive John Lee in coordination with the National Security Commission.

A government spokesperson said the measures aim to ensure that activities endangering national security can be “effectively prevented, suppressed and punished,” while safeguarding the lawful rights and interests of individuals and organizations.

Hong Kong has further strengthened its legal framework with an additional security law enacted in 2024, complementing the broader legislation imposed after the 2019 unrest.