You can correctly spell it with or without the e, judgment or judgement both in the dictionary
From http://www.wsu.edu/~brians/errors/judgement.html
In Great Britain and many of its former colonies, “judgement” is still the correct spelling; but ever since Noah Webster decreed the first E superfluous, Americans have omitted it. Many of Webster’s crotchets have faded away (each year fewer people use the spelling “theater,” for instance); but even the producers of Terminator 2: Judgment Day, chose the traditional American spelling. If you write “judgement” you should also write “colour” and “tyre.”
Si?
Let's just let the CINCs make their own plan for Iran and lets call it,.."Discernment Day".