When silhouetted against the symbolism – as French media proudly insist – of King Charles choosing France for his first state visit at month’s end, this weekend is very much an Anglo-French affair. On Friday, Rishi Sunak and seven ministers visited Paris – a first for five frosty years – for a Franco-British summit with president Macron and relevant ministers on everything from energy policy, immigration, defence and security to Ukraine and the Asia-Pacific.