The document discusses containment case study 1, which is the Korean War from 1950-1953. It provides context about how the war began and the US and UN's involvement. It mentions that China became communist in 1949 and the US feared further communist expansion. The document also discusses General MacArthur and his differences of opinion with President Truman over strategy in Korea. Students are tasked with advising Truman on how to stop communism spreading without getting drawn into more wars. It provides sources to use in answering questions about the key events and outcomes of the Korean War.