Why did neither britain nor russia assume a dominant leadership position in the nineteenth century?

Early 19th century nationalist directly opposed the principles upheld at the congress of Vienna that...Legitimate monarchies or dynasties, rather than ethnicity, provided the basis for political unity.A significant difficulty for nationalist was and is...Setting on which national customs should be formally adopted by the state and schools.

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 know the answer is