malcolm wrote:

the version AV8 Harrier used by the USMC, is an updated American version of
the UK Harrier,

Yes. They were built by McDonnel-Douglas (prior to
its purchase by Boeing) in the US, under license from
the Brits.

Both versions are updated/redesigned from the British
Kestrel, the first production VTOL jet.

And none of them can transport troops.