About an hour but if it was not in speed of light it would take about 7 Earth years and 16 days.
When Earth and Mars are lined up, on the same side of the sun, as close together as they can get, light or radio take about 4.4 minutes to make the trip When earth and Mars are lined up on opposite sides of the sun, as far apart as they can get, the trip is about 21 minutes.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.