"Ideology" is usually better termed "marketing" in the American political context. The war media popularizes the myths and prejudices (even if they weren't fake they wouldn't rise to the level of "ideology") that make favored wars more likely. They do that in order to make more money, which is typical of marketing.
Besides, both of these wars can be traced to particular events rather than some sort of general ideology. The Korean War was foisted upon civilian leadership by the insubordinate and deliberately poor tactics of nest-feathering military brass like MacArthur. The Vietnam War was justified by the Tonkin Gulf Hoax executed by navy but mostly by NSA.
"Ideology" is usually better termed "marketing" in the American political context. The war media popularizes the myths and prejudices (even if they weren't fake they wouldn't rise to the level of "ideology") that make favored wars more likely. They do that in order to make more money, which is typical of marketing.
Besides, both of these wars can be traced to particular events rather than some sort of general ideology. The Korean War was foisted upon civilian leadership by the insubordinate and deliberately poor tactics of nest-feathering military brass like MacArthur. The Vietnam War was justified by the Tonkin Gulf Hoax executed by navy but mostly by NSA.