Poland right now

What if… ok, hear me out on this: What if we let Poland "Lease" a nuclear weapon from USA or France just so Poland could announce they now have a nuclear weapons in their possession?. So on the paper that would be true, but the secret small-letter asterisk footnote in the contract would still leave final command/control over firing/usage of this weapon to the real owner?

You know, a typical leasing deal :)