Viewed in a global context, the American sectional struggle over slavery in the territories was part of a transatlantic upsurge in nationalist feeling in the 1840s and 1850s. Nationalist and republican revolutions swept through Europe in 1848 while wars of national unification or expansion raged in Mexico and South America. Almost everywhere, competing visions of national futures led to conflicts over territorial boundaries, forms of representative government, central versus local control, and degrees of personal freedom. Many Americans sympathized with overseas struggles against kings and tyrants, but when their own nation's expansion became intertwined with fierce sectional divisions over slavery versus freedom, its political leaders inched step-by-step toward a homegrown nationalist war. David Wilmot, author of the Wilmot Proviso, is an excellent example of a:

what are the options?

b. major john c. frémont led a rebellion called the bear flag revolt.

explanation:

during the bear flag revolt, from june to july 1846, a small group of american settlers in california rebelled against the mexican government and proclaimed california an independent republic. the republic was short-lived because soon after the bear flag was raised, the u.s. military began occupying california, which went on to join the union in 1850. the bear flag became the official state flag in 1911.

the communist manifesto is an 1848 political pamphlet by the german near the end of the manifesto, the authors call for a "forcible overthrow of all existing social conditions",  ..

the award is named for an american naval historian and theorist, rear admiral alfred thayer mahan, united states navy who, through his writing, provided stimulus and guidance to those who share in the defense of the nation.