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There’s at least a 3rd option, closer collaboration with the UK and an extension of the UK’s nuclear deterrent to Canada.

I’ve heard a lot of talk of CANZUK again recently and it makes a lot of sense to me.

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Doesn’t the UK’s nuclear program rely on America to service it?

I believe the UK uses the same Trident SLBMs as the US, but with their own warheads. I'm not sure if the US maintains the missiles.

I'm not sure, but it is possible we do minor servicing on the missiles. e.g. swap out components for spares.

However the missiles are regularly rotated back in to the common pool in the USA for servicing. The schedule is such that the USA could disable our deterrent within a couple of years if they so desired.

So we have the nukes, but no independent way to deliver them.

Canada doesn't need a US-made missile like the UK, they could drive a regular truck into the heart of any US city

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