[Seeker]

Wasn't the EU, Astra-Zeneca contract written under Belgian law whereas the UK, Astra-Zeneca contract was written under UK law? Apparently (definitely not a legal expert here), Belgian law looks at what was intended in the law (which makes it harder to enforce) whereas UK law has to obey what is specifically written.

Once the expression "best efforts" is included when defining number of vaccines to be delivered, all it guarantees is long paid hours for the courts.