What policy hope the united states might be able to contain communism within its current borders.

Communism was on the march.

When the RED ARMY marched on Germany, it quickly absorbed the nearby nations ESTONIA, LATVIA, AND LITHUANIAinto the Soviet Union. Soon communist forces dominated the governments of ROMANIA and BULGARIA. By the fall of 1945, it was clear that the Soviet-backed LUBLIN REGIME had complete control of Poland, violating the Yalta promise of free and unfettered elections there. It was only a matter of time before Hungary and Czechoslovakia fell into the Soviet orbit. Yugoslavia had an independent communist leader named TITO.

in 1803 the louisiana purchase took place, doubling the size of the country. by 1840 almost 7 million americans had migrated westward in hopes of securing land and being prosperous. the belief that settlers were destined to expand to the west is often referred to as manifest destiny.

explanation:

i really really really really really really dont know