It was important to President Thomas Jefferson that this new land was explored to see what type of resources were available. How did President Jefferson go about exploring this new land? Who did he choose? What did they do?

He chose Lewis and Clark to explore the new land. They took notes of the plants, flowers, and landscapes they found and encountered. Along the way they also got help from Sacagawea, a Native American woman. Hope this helps!

Korea and Vietnam had ongoing wars where the USSR and the US were directly involved. 

However Cuba was also a nation of interest since the USSR was stationing Nuclear weapons and supplies there, which would lead to the Bay of Pigs invasion and the Cuban Missile Crisis.