Finished reading this book about a week ago. There is no mention of the pig incident at all. Pershing was a more winning hearts and minds type of counter insurgent, an early Petreaus type. The Moros would revolt, gather on a extinct volcano, and wait to be slaughtered by the US Army. They did not understand guerilla tactics. US officers felt the Plains Indians had a better understanding of warfare than the Moros.
****US officers felt the Plains Indians had a better understanding of warfare than the Moros.****
You don’t need to understand warfare when your prime motive is to become a martyr.