Is the US pushing South Korea to the fore in deterring a war over Taiwan?
Washington’s latest strategy urges allies to spend ‘much more for collective defence’ as it backs Seoul building nuclear-powered submarines

In its recently released National Security Strategy (NSS), US President Donald Trump’s administration highlighted the importance of a “favourable conventional military balance” as an “essential component of strategic competition”, focusing on deterring conflict over Taiwan by preserving “military overmatch”.
While the latest NSS pledged to build a military “capable of denying aggression anywhere in the first island chain”, it said that the US “cannot, and should not have to, do this alone”.
Allies “must step up and spend – and more importantly do – much more for collective defence”, it added.
The NSS outlines US strategic priorities and vision, including military posture, national threats and ties with allies and adversaries.
“America’s diplomatic efforts should focus on pressing our first island chain allies and partners to allow the US military greater access to their ports and other facilities, to spend more on their own defence, and most importantly to invest in capabilities aimed at deterring aggression,” it said.