"I'm curious what Moharram 10th translates to on the normal calendar."
Let me correct my earlier post. It's the first month of the Moslem New Year. But since the Moslem year is shorter than ours, it "migrates" through the years.
Anyway, in 2003 it was the thirty day period starting March 4, 2003.
Muslim New Year - Wikipedia, the free encyclopedia
I just took a stab at converting the date, 10 Moharram in Gregorian year 2003, to the Gregorian date... it's March 10... ie 10 days prior to the March 20 invasion.