The web search results mention the general concept of deploying thousands of unmanned vessels and the alignment of US/Taiwanese visions, but none of the provided evidence explicitly state that 'Taiwanese analysts have broadly welcomed a new US Navy plan to deploy thousands of uncrewed surface vessels across the Indo-Pacific by 2030, saying it could complicate Beijing’s military planning and strengthen deterrence' as a consensus view. The evidence is suggestive but lacks direct corroboration from multiple independent sources confirming this specific analysis/welcome.

The web search results cite Captain Garrett Miller discussing the deployment of medium uncrewed surface vessels (Sea Hunter and Seahawk) and integrating them with carrier strike groups. However, the evidence does not provide enough independent sources to corroborate the specific details (over 30 medium vessels, thousands of smaller drones, and the 2030 timeline) as stated in the claim. The information appears derived from a single narrative thread across the search results.

The claim that 'cheap, expendable uncrewed vessels could increase the cost of blockades or attacks by forcing the PLA to track and engage more targets' is supported by the general theme in the web search results regarding the impact of USVs in hybrid threats. However, the provided evidence snippets do not contain multiple independent sources explicitly making this specific assessment regarding the PLA's reaction to cost increases from tracking more targets.