Citizenship is a status in society. It is an ideal state as well. It generally describes a person with legal rights within a given political order. It almost always has an element of exclusion, meaning that some people are not citizens, and that this distinction can sometimes be very important, or not important, depending on a particular society. Citizenship as a concept is generally hard to isolate intellectually and compare with related political notions, since it relates to many other aspects of society such as the family, military service, the individual, freedom, religion, ideas of right and wrong, ethnicity, and patterns for how a person should behave in society. When there are many different groups within a nation, citizenship may be the only real bond which unites everybody as equals without discrimination—it is a "broad bond" linking "a person with the state" and gives people a universal identity as a legal member of a specific nation.