For many, France is the old enemy (that is after discounting the Scots. And the Welsh. And the Irish). For me, from a line of centuries of agricultural peasant the thought that my Saxon ancestors had it all taken away from them after the Norman French invasion of 1066 is an interesting diversion. What Englishman's blood does not quicken at the mention of Agincourt, Crecy, Poitiers?
But the reality is that once the upstart Napoleon got his comeuppance enshrined in the Treaty of Vienna in 1815, France and Britain have become natural allies - Crimea; two World Wars; Suez; NATO.
The Entente Cordiale of 1905 ; Churchill's 1940 offer of pooled nations; the St. Malo Declaration; all underpin joint actions. But the ingrate General Charles de Gaulle, with his rejection of Britain's first attempt to join the European Common Market, put things in a proper perspective. Nations have permanent interests. Their alliances and friendships may be more transient in nature . And a friendship may put the frights under the neighbours - witness Germany's concerns about encirclement which had an impact twice in the last century and which even today underpin their willingness to be the European Union paymaster.
All of this is rehearsed by way of introducing the topic of defence collaboration with France. Should we - and equally importantly, could we?