Okinawa and Mageshima bases are there for a reason, something like 300-400m from Taiwan. For military purposes, Japan is effectively an extension of the US bord

Okinawa and Mageshima bases are there for a reason, something like 300-400m from Taiwan. For military purposes, Japan is effectively an extension of the US border. That's one of the great innovations of the US military model. Ensuring air domination allows them to effectively expand control by simply placing bases. Britain had done that in the past with naval forces but their logistic challenges are more complicated when it comes to defending supply lines.