I watched that movie today. this movie features 山本五十六, who was a official in japanese navy in 1940s. At that time, almost all people in Japan were willing to open war against America because Japan kept winning previous wars, like the Sino-Japanese war and the Russia-Japanese War, and also many Japanese people had not experienced wars. So Japanese people misunderstood that they were really strong and could defeat any country around the world. During that period, 五十六 had a different opinion. He objected to open war all the time even though there was strong public opinion that they should make war in order to gain a lot of benefit from the enemy. The reason why he had that opinion came from his lots of battle experiences and insight. He battled in previous two wars as a soldier and he lost his two fingers and lot of his friends in the battle field. In other words, he knew how scare wars is. However, in the end, Japan started making war over America against his will.