Who led the expedition that surveyed america's new louisiana purchase?

William Clark & Meriwether Lewis

Explanation:

This expedition is commonly known as the "Lewis & Clark Expedition", and was an expedition in an attempt to map out most of the Louisiana Purchase. The Expedition left the US on a water route that led them to present-day Washington (state), meeting and establishing relationships with the native people along the way, as well as taking geographical and environment note of their surroundings.

~

answer; i believe the above statement is (true);

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.