give the context for, define, and tell the significance/after-effect of each of the following, in terms of 20th-century US culture/history:   Cold War (1947-90)Korean War (1950-53)McCarthyism (1950s)Vietnamization (July 1969, or the \”Nixon Doctrine\” 1969-90)Powell [Bush I] Doctrine (1991-2001)U.S. invasion of Afghanistan (2001-14)Wolfowitz (Bush II) Doctrine (June 2002)    2.  Compare & contrast the U.S. military action in, and U.S. domestic popular support of American intervention in Vietnam (1965-73) & Iraq (2003-11).