>Taiwan is a British controlled (financially) outpost?
Dunno mebbe
>Why has Trump delayed shipments of arms?
What makes you say that? Arms shipments are not usually announced when the ships sail
>Why does the UK not have a single sub deployed (because of required maintenance)?
Yes, the Royal Navy was terribly underfunded for decades. They aren't alone, the UK has about 25 operational tanks in the whole country and I cannot confirm nor deny they are all Challenger MBTs
>Why was Greenland so important to N American national security? (hint: it wasn't -mainly- from the threat of Russian nukes.)
Minerals and the position for air & sea control