The most superficial study of the causes of World War One illustrates that rampant nationalism played an important role in the tragedy that unfolded one hundred years ago in the summer of 1914. Schools have a particular responsibility to ensure that any study of the Great War highlights how national pride is one short step away from national prejudice, which in turn precludes empathy and predisposes countries towards military conflict. This is particularly important for my own students at the International School of Toulouse. The national mix of my current IGCSE and IB history students is British, German, Austrian, French, Indian, Canadian, Spanish, Australian, American and Russian. With this in mind I make a particular effort to ensure that my five-day school trip to the Somme and Ypres, Belgium promotes internationalism rather than a narrow sense of nationalistic pride in the involvement of one country.