Problems facing settlers during the first Oklahoma land run included all of the following except A. a federal cavalry force that was too small to patrol the entire region
B. sooners sneaking into the Unassigned Lands before the official time
C. multiple claims on the same land, leading to disputes over land claims
D. difficulty finding land claims that would have neighbors in the region

Protecting and assisting  u.s. citizens  living or traveling abroad; assisting u.s.  businesses  in the international marketplace; coordinating and providing support for international activities of other u.s. agencies (local, state, or federal government), official visits overseas and at home, and other diplomatic efforts.keeping the public informed about u.s. foreign policy and relations with other countries and providing feedback from the public to administration officials.providing  automobile registration  for non-diplomatic staff vehicles and the vehicles of diplomats of foreign countries having  diplomatic immunity  in the united states

Idon’t understand your question but if u mean the difference in america vs in africa