[xone]

IP would be initial point

Same is true today, all CAS uses an IP as well as all helo routing.

[eyedigress]

It is used on all attack coordinates regardless of the AC.

[Steven W.]

I think, in this case, the words with the missing letter(s) conveys the message:

@realDonaldTrump - The fact that I am having a meeting is a major loss for the U.S., say the haters & losers. We have our hostages, testing, research and all missle launches have stoped, and these pundits, who have called me wrong from the beginning, have nothing else they can say! We will be fine!

Miss[i]le Stop[p]ed

MISSILE STOPPED