The document summarizes key events and policies during the Kennedy and Johnson administrations from the 1960s. It discusses Kennedy's New Frontier agenda which aimed to address social issues and confront the Soviet Union, but was cut short by his 1963 assassination. It then outlines Lyndon Johnson's Great Society programs that aimed to eliminate poverty and racial injustice through major civil rights laws and social welfare programs. However, Johnson also greatly escalated US involvement in the Vietnam War during this period of significant social change and cultural upheaval in America.