The world’s most powerful military is confronting a reality that should concern every Western ally.

Among the Pentagon’s worries is that expanded hostilities could dangerously drain the diminished stockpile of air defence munitions in the Middle East.

The Pentagon says the Iran campaign is ‘on hold’ amid concerns over depleted Patriot, THAAD, Tomahawk and JASSM stocks; if Trump resumes strikes, Fordow, Natanz, Isfahan and other…