> validity of software licenses to be enforced under French copyright law. Neither does the US (as far as I know) What happens in the us is that a termination

> validity of software licenses to be enforced under French copyright law. Neither does the US (as far as I know) What happens in the us is that a termination clause in the GPL contract leads to a termination of the contract and only then you can sue for copyright violations. So my guess is that the difference of law or the interpretation/application of it lies in how/when the termination applies. > cannot be enforced in similar jurisdictions They still can be enforced it's just based on a different legal basis, which in general is much less costly for the offender and might lead to less "damage payment" for the offended.