But perhaps the French should just grin and bear it, just as we have been doing about Bannockburn - a battle fought in similar circumstances - now for seven centuries.
For me, Agincourt remains interesting primarily because of what nearly happened, rather than for what did. As I wrote in the Guardian last weekend, we came closer to merger with France then than any time except 1940. More on the creation of Frengland another day.
What Agincourt ought to be now is a symbol of the folly of military pride, and in particular the disastrous psychology of the frontal assault - which has served this country so badly over the past century and a half, just as it served the French so badly in 1415 and the English so badly in 1314.
It particularly afflicts empires and former empires. It goes with the conservative mindset of deference to power. I have just been reading Lady Diana Cooper's war memoir Trumpets from the Steep, and she encounters a number of boneheaded military types talking about how we need to "teach the Japanese a lesson". The result: the fall of Singapore.
Big organisations, 'big' nations, former empires fling up this kind of psychology. It rejects cleverness, refuses to accept intelligence, and sends their underlings into battle without a plan. It is the American invasion of Iraq - I'm sure the French aristocracy before Agincourt talked in terms of 'shock and awe' to teach the English a lesson.
So, yes, this isn't really a blog post about Agincourt. It is a post about conservative psychology versus Liberal psychology.
It is shock and awe stupidity versus the vital importance of challenging mindsets from below, in the sense that Karl Popper meant it in The Open Society and its Enemies. If you open that possibility, you can learn. You can be clever, you can move forward.
So save us all from being led by conservatives. Let's hope it never happens...
AND! My ebook Operation Primrose is on special offer for 99p this week. There is also a conventional print version here.