Answer:
Yes, I agree with the argument of Sintoni's about the Vietnam war.
Step-by-step explanation:
"Vietnam is a test of the American Spirit", these were the lines written by Sintoni in his last letter to his wife. Every war will be fought with not only weapons but also with the help of spirit. Spirit means courage, if you have a courage no one can defeat you in any war but if you have no courage you will lose the war even with advance weapons. So if the American has that spirit, we will win this war.