Further mention of possible subject matter that may have inspired the tune can be found here: http://newsgroups.derkeiler.com/Archive/Rec/rec.music.celtic/2006-02/msg00026.html
"... some think it refers to the Battle of Aughrim in 1691... Breathnach (1997) says the piece relates to the victory of Lord Inchequin at Knockinnoss, County Cork, in 1647... The last of the old Kerry pipers, Michael O'Sullivan ... maintained it was about the battle of Cnoc an Áir, in which Fionn Mac Umhaill defeated Meargach and his hosts with great slaughter. A piping piece, it programmatically simulates the march of the troops to battle, the struggle itself, and the women lamenting the slain in the aftermath. It appears in the appendix to Walker's Historical Memoirs of the Irish Bards (1786) and Thompson's Hibernian Muse (1786), although in the latter collection in appears under the title "An Irish Dump" (dump meaning here a lament or sad tune)."
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I no longer have the more scholarly texts from which I might have drawn less supposition and more verifiable information. I wonder if Roxanne requested a title change (using a couple of the known titles, perhaps)for the thread, those with more accurate information might take notice.