Guillaume de Boullion flies his explosive-packed SPAD XXII through the Arc de Triomphe, to collide with President Raymond Poincare’s reviewing stand at Bastille Day, 1919. De Boullion, a fiercely nationalist ex-fighter pilot descended from royalty, killed Poincare and himself in protest of Poincare’s lenient policies towards Moroccan immigration.
In the years since the war, de Boullion had begun drinking heavily, and showed every indication of being mentally unsound. While he caused considerable damage, it is still believed that he acted alone.
In recent years, a Muslim terrorist group known as The Base (or “al-Kayida”) has copied de Bouillion’s strategy, packing light planes with explosives and using them for targeted assassinations.