Why was the united states concerned about vietnam during the 1950s? the united states feared communism would spread to laos and cambodia. the united states wanted to vietnam gain independence from france. the united states did not want france to take control of vietnam from the ussr. the united states thought it would have to send troops to dien bien phu.

The United States feared Communism would spread to Laos and Cambodia.

American interest in Vietnam increased during the 1950s when the North Vietnamese army (supported by the Soviet Union, China, and other communist allies) threatened to take over Vietnam. The U.S. feared that communism would spread to its neighboring countries such as Laos, Cambodia, Thailand, Burma, Malaya, and Indonesia, which could result in one-quarter of the globe (from East Germany to the shores of the Pacific Ocean) becoming communists too.

b: the establishment clause  

b: socialism  

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.