China surrounding Taiwan would be enough to drag the US into military conflict, said the majority of 52 US experts

• The US military is likely to intervene if China enacts a quarantine or blockade in China, experts say.
• A CSIS survey of 52 experts found that 63% believe a quarantine would provoke a US response.
• And 79% of those surveyed said they were at least "moderately confident" the Pentagon would step in during a blockade.

The threshold for US military intervention in Taiwan likely isn't an invasion from China, but a lesser action such as Beijing quarantining or blockading the island, according to a loose consensus from leading experts in the US.