It was Kennedy. In 1961, 28th day of March, <span>President-elect John F. Kennedy was briefed by the intelligence agencies about the deteriorating situation in South Vietnam. This was the first time that a</span><span> </span><span>National Intelligence Estimate </span><span>expressed doubt about President Diem's ability to deal with the insurgency. Kennedy decided to send 100 additional military advisers to South Vietnam.</span>
