Citizenship of the US DUTIES ·Jury duty ·Taxes Military participation is not currently required.The United States armed forces are a professional all-volunteer force,although both male U.S.citizens and male non-citizen permanent residents are required to register with the Selective Service System and may be called up in the event of a future draft.Citizenship of the US DUTIES • Jury duty • Taxes Military participation is not currently required. The United States armed forces are a professional all-volunteer force, although both male U.S. citizens and male non-citizen permanent residents are required to register with the Selective Service System and may be called up in the event of a future draft