In this task, you will be shown an extract from a movie plot and a question. You need to provide the correct answer for it. Short answers containing words that are present in the passage are preferred.

(Spoilers!) In the near future, a hostile alien race (called the Formics) have attacked Earth. If not for the legendary heroics of International Fleet Commander, Mazer Rackham (Ben Kingsley), all would have been lost. In preparation for the next attack, the highly esteemed Colonel Graff (Harrison Ford) and the International Military are training only the best young children to find the future Mazer. Ender Wiggin (Asa Butterfield), a shy, but strategically brilliant boy is pulled out of his school to join the elite.Arriving at Battle School, Ender quickly and easily masters increasingly difficult war games, distinguishing himself and winning respect amongst his peers. Ender is soon ordained by Graff as the militarys next great hope, resulting in his promotion to Command School. Once there, hes trained by Mazer Rackham, himself, to lead his fellow soldiers into an epic battle that will determine the future of Earth and save the human race.- Synopsis by Summit Entertainment, Question: Who is the International Fleet Commander?
Answer: International Fleet Commander, Mazer Rackham