Following the american revolution, some colonists were concerned that native americans threatened the western frontier of the united states. what part of the preamble best addresses this issue?
a. provide for the common defense
b. insure domestic tranquility
c. insure the blessings of liberty
d. promote the general welfare

these the citzens and goverment come to terms some of the amendments gave the states more power then the goverment and some protocted americans rights

the berlin blockade was an international crisis that arose from an attempt by the soviet union, in 1948–49, to force the western allied powers (the united states, the united kingdom, and france) to abandon their post-world war ii jurisdictions in west berlin. in march 1948 the allied powers decided to unite their different occupation zones of germany into a single economic unit. in protest, the soviet representative withdrew from the allied control council. coincident with the introduction of a new deutsche mark in west berlin (as throughout west germany), which the soviets regarded as a violation of agreements with the allies, the soviet occupation forces in eastern germany began a blockade of all rail, road, and water communications between berlin and the west. on june 24 the soviets announced that the four-power administration of berlin had ceased and that the allies no longer had any rights there.