Feed them to the pigs.

Via Fox News:

Dozens of dead bodies of foreign ISIS recruits are piling up in Iraqi hospitals because their home countries don’t want them and local cemeteries won’t take them either, according to a high official in the nation’s Interior Ministry.

Arabic-language newspaper Akhbar Al Iraq cited an unnamed, high-ranking ministry official who said more than 100 bodies of jihadists from 13 different nations are scattered around in various hospitals in Iraq while the government tries to figure out where and how they will be disposed of. Nations refusing to take back dead fighters’ bodies were not named, but said to include Arab, European and Asian countries.

“Burn them or drown them, we don’t want them,” the official quoted the countries as telling Iraq. “We took away their citizenship.”

Most of the fallen fighters were killed in combat with the Kurdish Peshmerga forces or by coalition air strikes. Some are jihadists who were executed for committing acts of terrorism. Several nations have moved to revoke citizenship of residents known to have left to join Islamic State.

The highest numbers of Islamic State fighters come from the Arab world. Tunisia and Saudi Arabia have each documented more than 1,500 citizens who have joined Islamic State. Western Europe accounted 4,000 fighters, with France leading the rank with nearly 1,200 militants. There have been an estimated few hundred from the United States and Canada.