Traditional military values of bravery, sacrifice, sense of duty, and camaraderie are emphasized, and the action is usually described from the point of view of a soldier. Typically, the technology is more advanced than that of the present and described in detail. In some stories, however, technology is fairly static, and weapons that would be familiar to present-day soldiers are used, but other aspects of society have changed. For example, women may be accepted as equal partners for combat roles. In many military science fiction stories, technological advances are often basic to plot developments. Some works draw heavy parallels to human history and the fact that scientific breakthroughs or new doctrine can severely change the outcome of battles and the way war is fought. Many works explore how progress or changes to the aforementioned affect military doctrine and also how the protagonists and antagonists reflect on and adapt to these changes. Military science fiction is also part of the "military and popular culture" subject field.