Simple fact of life is a quote/tagline of something.. game or movie or whatever:

"War is Hell..."

The entire human civilization is built up by the mortar made from the mud made wet by blood on battlefield. History, the story of the victor and loser, told by the victor, is a testament to that. The question is not whether what America did was right or wrong. Some might even say that what the Japanese did to Pearl Harbor was the foundation stone of what would ensue... The fact is that the Americans chose to do it on civilians, raising the bar of heinous war crime, just as the Nazi had done. However, the greater fact is that America won the war. So there is no debate valid of their actions. Harsh terms...