in short paragraph each (5-10 lines each) give the context for, define, and tell the significance/after-effect of each of the following, in terms of 20th-century US culture/history: 1-Cold War (1947-90) 2-McCarthyism (1950s) 3- Korean War (specifically the U.S. part of the U.N.-led "police action" in Korea, 1950-53) 4- Gulf of Tonkin Resolution (passed 1964, repealed 1970) 5- anti-war protests (1967-71) and the "counter-culture" 6- Vietnamization (July 1969, or the "Nixon Doctrine" 1969-90) 7- Vietnam Veterans Memorial (dedicated 1982) 8- Powell [Bush I] Doctrine (1991-2001) 9- U.S. invasion of Afghanistan (2001-14) 10- WMDs (weapons of mass destruction) ...