A veteran () is a person who has significant experience (and is usually adept and esteemed) and expertise in an occupation or field. A military veteran is a person who is no longer in a military. A military veteran that has served directly in combat in a war is further defined as a war veteran (although not all military conflicts, or areas in which armed combat took place, are necessarily referred to as wars). Military veterans are unique as a group as their lived experience is so strongly connected to the conduct of war in general and application of professional violence in particular. Therefore, there are a large body of knowledge developed through centuries of scholarly studies that seek to describe, understand and explain their lived experience in and out of service. Griffith with colleagues provides an overview of this research field that addresses veterans general health, transition from military service to civilian life, homelessness, veteran employment, civic engagement and veteran identity as recurrent investigative topics in the field. Military veterans often receive special treatment in their respective countries. War veterans are generally treated with great respect and honour, although negative feelings towards veterans may be held in certain situations: veterans of unpopular or lost conflicts may be discriminated against. In some countries (e.g., Germany after 1945), veterans are neither honoured in any special way by the general public, nor have their dedicated Veterans Day, although events are sometimes orchestrated by minority groups. The way veterans are portrayed in the media is likely to contribute to public attitudes. A small scale survey in 2020 indicated several ways in which veterans themselves feel that their representation in the media could be improved, by avoiding certain stereotypes. Many countries have longstanding traditions, ceremonies, and holidays to honour their veterans. In Commonwealth member states, Remembrance Day is held on November the 11th and is focused mostly on the veterans who died in service.