What us foreign policy issue was a motivation for american intervention in vietnam?

In order to prevent the propagation of Communism worldwide, especially due The U.R.S.S. was on top of that and was the main rival in the Cold War also supporting the Communist side of Vietnam; The United States of America employed several strategies such as education, training and military support to South Vietnam, and off course "The Containment Policy" aka "Cold War foreign policy", which helped economically to Western Europe Countries and pressure them diplomatically in order to have them as allies against The U.R.S.S.

Explanation:

step-by-step explanation:

100%     = 120

1%= 120/100=   1.2

9%   = 1.2 x 9=     10.8

10.80 to the 120 to get $130.80