This may include issues like entry and exit into the country, tax liabilities, postal services, or employment terms for host-country nationals, but the most contentious issues are civil and criminal jurisdiction over the visiting forces. For civil matters, VFAs provide for how civil damages caused by the forces will be determined and paid. Criminal issues vary, but the typical provision in U.S. VFAs is that U.S. military courts will have jurisdiction over crimes committed either by a servicemember against another servicemember or by a servicemember as part of his or her military duty, but the host nation retains jurisdiction over other crimes.