Objective. To determine what are the main ethical dilemmas that are presented to the individual to make decisions in times of war, in order to establish alternative action for ethical behavior. Methodology. The methodology of the research is qualitative. With a second analytical phase, in which the the decisions, mainly of doctors and lawyers, in times of war, are going to be studied. Results and conclusions. This article analyzes one of the main ethical dilemmas for doctors and lawyers: the application and performance of eugenics in human beings, as a medical practice and as a rule of law. Particularly in Colombia, since the late nineteenth and early twentieth century, practices, norms and activities have been promoted around the choice of the superior race. The following are some of Colombia's ethical dilemmas, conferences, practices, and eugenics standards