This document discusses the topic of whether military service should be obligatory. It provides an introduction to military service and examples where some countries like the UK require mandatory service for citizens between 16-33 years old, excluding women from ground combat positions. The document outlines reasons why military service is argued to be obligatory, such as defending one's country, and advantages like having enough reserve soldiers and promoting equality. However, it also notes disadvantages such as violating free will and compromising the quality of military service.