But what about the pigs?
A local message board had a thread about General Pershing, so I Googled it up. Apparently, he was combating Muslim terrorists (called the Moros) in the Philippines in 1911. The account states:
Forced to dig their own graves, the terrorists were all tied to posts, execution style. The US soldiers then brought in pigs and slaughtered them, rubbing their bullets in the blood and fat. Thus, the terrorists were terrorized; they saw that they would be contaminated with hogs’ blood. This would mean that they could not enter Heaven, even if they died as terrorist martyrs.
All but one was shot, their bodies dumped into the grave, and the hog guts dumped atop the bodies. The lone survivor was allowed to escape back to the terrorist camp and tell his brethren what happened to the others. This brought a stop to terrorism in the Philippines for the next 50 years.
Of course the reference was from an Urban Legends page. It hasn’t been confirmed or denied and is classified as a rumor. Regardless, it’s pretty gruesome!