Capt Frank Diorio was India Company’s Commander in 2005. He is now a LtCol and still on active duty. One of the key sources I’ve used, especially for the Attack on Gannon chapter, is an interview he gave at the Virginia Military Institute in 2008.  He talks at length about India, the April 11th attack and the subsequent efforts he and his Marines made to engage with locals as they began fighting against AQI.

The full transcript of the interview is available on VMI’s website.
It is part of the Military Oral History Project, run by their Adams Center for Military History and Strategic Analysis. VMI Cadet Zachary Carmen conducted the interview on March 28, 2008.