“I neglected to define ABM as an Air Breathing Missile:”
ABM refers to anti ballistic missile, not air breathing missile. It’s the widely accepted meaning.
I defined my understanding of ABM which I learned in the 80’s. Your widely accepted meaning was not perviously defined, nor was it used in the 1980s.
If a term is used I contend it is incumbant user to preclude misundertandings. The op did not define the term, I did and backed it up with reference.
So which is correct? Me that defined and referenced, or ABM as noted by you? Please provide previously ABM perviously defined in this thread before I defined.