All of the following were strategies used in Vietnam by the United States EXCEPT:
a. a military invasion of North Vietnam
c. search and destroy missions
b. a bombing campaign of North Vietnam
d. deploying in excess of one half a million ground troops
All of the following were strategies used in Vietnam by the United States except "a. a military invasion of North Vietnam," since it was thought that this would be detrimental to the long-term mission.
