What were two reasons trade increased after rome became an empire? a)regions inside the empire were at peace. b)a good network of roads connected rome with faraway places. c)the roman armies needed supplies to wage civil wars in rome. d)the roman government forced the surrounding kingdoms to buy roman goods.

It is A and B i took the test trust me it's right:)

the monroe doctrine is the best known u.s. policy toward the western hemisphere. buried in a routine annual message delivered to congress by president james monroe in december 1823, the doctrine warns european nations that the united states would not tolerate further colonization or puppet monarchs.