At a covert training camp just north of Mosul, ten miles from the front lines with the Islamic State in Iraq and the Levant (ISIL), the first wave of Assyrian Christian volunteers for the Nineveh Protection Unit (NPU) have just completed boot camp. Funded in part by an Assyrian-American telethon campaign and trained by a handful of freelance U.S. military veterans, around 500 men are set to deploy next week as part of an unorthodox — and unproven — project.

But as ISIL pillages what’s left of their ancestral homeland, and Iraqi government forces prove incapable of stopping them, some among the region's dwindling Assyrian Christian minority have placed their hopes for self-preservation in the NPU, which plans to grow by the thousands in the coming months.

“Their morale and capabilities are higher than almost anything I’ve seen,” said Matthew VanDyke, an American filmmaker and former rebel fighter in Libya who organized training sessions over the past two months to whip the NPU into fighting shape. “The kidnapping of their people, the loss of their homeland, the use of their women as sex slaves — it’s really put a fire in them.”

The idea for a professionalized Assyrian army was first conceived last summer, when ISIL mounted its infamous surge across northwestern Iraq’s Nineveh plains, slaughtering or enslaving hundreds of Assyrians and other religious minorities who stood in its path. Their supposed protectors, the U.S.-backed Iraqi army, wilted before the onslaught, with many soldiers reportedly abandoning their posts and stripping off their uniforms to avoid detection.

The lesson, said Kaldo Oghana, an Iraqi Assyrian official and NPU spokesman, was that “no one protected minorities then, and no one ever will.”

So in early December, political leaders for the 400,000-member Assyrian community in Iraq, working alongside an Assyrian-American political action group, the American Mesopotamian Organization (AMO), vetted and enlisted the first tranche of displaced volunteers from among 2,500 applicants to compose the NPU’s inaugural battalion. As part of the AMO's Restore Nineveh Now campaign, the goal is to build a force from the ground up that will earn the respect of the Iraqi government and perhaps the anti-ISIL coalition led by Washington. Ultimately, the NPU says, they hope to prove themselves worthy of Iraqi or Western arms.

Though it has not seen action yet, the NPU has already attracted considerable attention in the West, in part due to VanDyke’s involvement. Through a project he calls Sons of Liberty International, VanDyke has crowdfunded online and tapped $12,000 of his savings to train local Christian forces against ISIL — starting with the NPU. At the NPU camp last month, VanDyke recruited five U.S. combat veterans to run a training course — involving simulated battles and physical training — at an Iraqi Kurdish peshmerga facility.

"The world has been slow to act," against ISIL, said VanDyke, who spoke from the Kurdish city of Erbil. "We don't have to seek approval from Congress. We just step in and help."

The urgency of their mission was underlined in tragic fashion this week, when ISIL stormed over 30 Assyrian villages along the Khabour River in Syria. In a pattern that has become all too familiar, ISIL quickly overpowered a smattering of local Assyrian and other militia fighters, burning homes to the ground, abducting up to 300 men, women and children, and scattering thousands more from their now mostly overrun homeland.

“We refuse to be just another militia,” said Oghana. “We are working to build security and defense systems for our homeland, the Nineveh plains.”