When the first chords of La Marseillaise resonate around Wembley at 9.41pm on Tuesday, and the camera pans down the line of serious young men in blue jerseys, drawn from across the spectrum of French society, it will be hard to think of another occasion when the visiting team's anthem has meant so much to both sides. There will be some who think that it is wrong to contemplate football so soon after the deaths on the streets of Paris on Friday, including those killed by the two suicide bombers outside the Stade de France, while the French team played Germany.There might even be some among those in France shirts who will struggle with the innate imperative to play.What felt inevitable, however, was that football, that great, modern, made-for-television spectacle, would eventually be drawn into the war on freedom, which is also a war on choice, on enjoyment, on eating out, and, as of Friday, on going to watch a rock band play or going to the game.There are few emblems of a modern, free society that reflect its image back as accurately as football, with its wealth and its confidence; its greed and selfishness; the joy it brings; the despair it can invoke; its heroes and villains.Not exactly a natural fit for those who want a society built on a totalitarian death cult.Football is one of those happy places we return to again and again to be reminded of all facets of the human condition.Which is part of the reason that the decision to go ahead with the game on Tuesday is the right one, and why France must still stage the European championships next year.Football is the best thing we have to showcase the successes of multi-culturalism.If France's 1998 World Cup-winning team was the great dawning of a new diversity in French society, then that team's 2015 successors are the reminders that the legacy continues.To say that it is inappropriate to stage a football match amid so much death and despair is to misread what Tuesday's game is now about.The bigger picture is a show of unity and communality of spirit between players and fans; players who have ethnic heritages that go far beyond the two countries' borders.Arsène Wenger, a long-term champion of diversity and tolerance, reflected in L'Equipe last week: "The sport of today can show us what the world of tomorrow will be like."..