What advances were made in transportation and communication in the 1920s and 1930s

What country was south vietnam resist a communist takeover before the united states stepped in? a. germany b. france c. britain d. japan

Answer the questions in the image for brainliest

17 million negroes cannot do as you suggest qnd wait for the hearts of men to change. tjis we cannot do unless we persue aggressively goals which all other americans achieved ove 150 years ago. how might martin luther king jr. respond to this statement?