President Johnson put destroyers in harm's way in the Tonkin Gulf not only once, but several times, with the, with a lot of his people hoping that it would lead to a confrontation and claiming that it had. And could have resulted in the lost of many lives in the course of it.
These sorts of things can happen, identities can be switched, the emotional implications are something that he has not been trained to feel. His whole life has been about separating himself from these sorts of actions.
The darkest places in hell are reserved for those who maintain their neutrality in times of moral crisis.

