A single question struck General Roméo Dallaire when he stared down the barrel of that AK-47. Nearly 20 years later, it’s a question that haunts him as much as it keeps him breathing.

How do I get that child’s finger off the trigger?

Dallaire, sitting down for an interview on Saturday before the Canadian premiere of the film "Fight Like Soldiers, Die Like Children" at the 2013 Hot Docs International Documentary Film Festival, says his life now revolves around that thought.

By now you know that in 1994, Dallaire served as commander of the United Nations Assistance Mission for Rwanda. He received orders to stand by as a genocidal civil war ravaged the country, with 800,000 Tutsis and moderate Hutus slaughtered in 100 days.

You know he shook hands with a devil.

You know he returned to Canada, broken, and tried to kill himself if only to put an end to the dreams.

You know he became a senator and Officer in the Order of Canada.

But chances are you’ll never know what it is like to have your life in the hands of a child soldier. So he opens up — this strong, proud man — about the day, almost two decades ago, when a frightened youngster in Rwanda put a gun to his face.

“They always have their hand on the trigger,” he says of child soldiers. “It’s sort of a thing.”

But what makes them so dangerous — and ultimately so useful to the warlords and tyrants who recruit them — is their wild unpredictability.

“Adults you can sort of gauge,” he says. “But in children, there’s no way of knowing.”

No way of knowing if there might be an accidental slip of the finger or deadly rush of adrenaline, he explains. No way of knowing what will happen next.

Survival began in that instance with convincing the child to get his finger off the trigger.

“After that you can negotiate, move the weapon aside and start using your physical presence,” he says. “Your adult presence.”

But it’s not just troubled children Dallaire wants to convince these days, it’s the men behind them.

The general’s new focus is to eradicate the use of child soldiers through The Roméo Dallaire Child Soldier Initiative. The group says there are 250,000 children who have been recruited, often by force, to fight in armed conflicts around the world.

The film, directed by Patrick Reed, follows Dallaire’s work in Africa, specifically the Democratic Republic of the Congo and South Sudan where many boys and girls are stolen from their families, abused, raped, drugged and turned into killers.

It captures the innovative way Dallaire’s group is attempting to end this scourge of humanity, not just through research and training, but by staring down and shaming the commanders who put kids on the battlefield in the first place.

Dallaire says the use of children in Rwanda was prevalent. He recounts watching packs of “wild-eyed, drugged-up” kids use machetes to slaughter with reckless abandon.

“It was interesting that the adults always seemed to be more in the back,” he says.

Now, Dallaire aims to bring such people forward so he can, as he puts it, “take the bastards on.”

Founded in 2008 and housed at the Centre for Foreign Policy Studies at Dalhousie University, Dallaire’s Initiative works with military, police and peacekeeping forces to interrupt the recruitment of kids by armed groups. It’s an international partnership that includes the United Nations Institute for Training and Research.

But where other programs focus on convincing kids to put down their weapons, the Initiative appeals to militia leaders directly and attempts to convince them it is disadvantageous, from a purely tactical side, to use a child in war.

“That’s something that nobody else is attempting to do on this issue globally,” says Shelly Whitman, executive director of the Initiative.

A key part of that process involves sending Dallaire to challenge these men on a personal level, often by appealing to their very manhood.

“When another military leader sits down... and says (he) has no respect for you because you use kids, it’s a very macho thing,” Reed says.

Dallaire is confident that speaking with militia leaders directly will ultimately reduce the use of kids as instruments of war.

He says his group has already been given the mandate to train the Sierra Leone army and police, as well as write curriculum for the primary school system to show children how to avoid recruitment.

And he’s willing to do whatever it takes because he knows that a child soldier with a bloody machete or a gun to the face of a general is still just a child.

“It’s sort of like a knight of old,” he explains. “He’s got all his armour on but inside that tin can, there’s a human being. The child soldier is sort of like that. You’ve got the child in there, suppressed, but the outside is absolutely warrior-like and projecting evil.”

And to Canadians who hesitate to get involved or believe the problems in Africa are a world away, Dallaire has more haunting questions.

“Are those children different than ours?” he asks. “Are those children out there less human than our children? Are there two standards of children in humanity?”

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    WASHINGTON - FEBRUARY 05: (L-R) Justice Department Criminal Division Deputy Assistant Attorney General Sigal Mandelker, Parliament of Canada Senator Romeo Dallaire, former commander of the UN Peace Keeping force in Rwanda, and Don Cheadle, actor and activist testify before the US Senate Judiciary Committee's Human Rights and the Law Subcommittee February 5, 2007 in Washington, DC. The subcommittee's inaugural hearing was titled 'Genocide and the Rule of Law.' (Photo by Chip Somodevilla/Getty Images)

  • 'Hotel Rwanda' star Don Cheadle and Romeo Dallaire

    Washington, UNITED STATES: US actor and activist Don Cheadle (C), star of the film Hotel Rwanda, listens as Lt. Gen. Romeo Dallaire (L), former commander of the United Nations peacekeeping force in Rwanda, testifies before the Senate Human Rights and the Law Subcommittee during the 'Genocide and the Rule of Law' hearing on Capitol Hill in Washington 05 February 2007. On right is Diane Orentlicher, professor at the Washington College of Law at American University. AFP PHOTO/Jim WATSON (Photo credit should read JIM WATSON/AFP/Getty Images)

  • 'Hotel Rwanda' star Don Cheadle and Romeo Dallaire

    Washington, UNITED STATES: Canadian Lt. Gen. Romeo Dallaire, former commander of the United Nations peacekeeping force in Rwanda, testifies before the Senate Human Rights and the Law Subcommittee during the 'Genocide and the Rule of Law' hearing on Capitol Hill in Washington 05 February 2007. AFP PHOTO/Jim WATSON (Photo credit should read JIM WATSON/AFP/Getty Images)

  • 'Hotel Rwanda' star Don Cheadle and Romeo Dallaire

    WASHINGTON - FEBRUARY 05: Parliament of Canada Senator Romeo Dallaire, former commander of the UN Peace Keeping force in Rwanda, testifies before the US Senate Judiciary Committee's Human Rights and the Law Subcommittee February 5, 2007 in Washington, DC. The subcommittee's inaugural hearing was titled 'Genocide and the Rule of Law.' (Photo by Chip Somodevilla/Getty Images)

  • 'Hotel Rwanda' star Don Cheadle and Romeo Dallaire

    Washington, UNITED STATES: Canadian Lt. Gen. Romeo Dallaire, former commander of the United Nations peacekeeping force in Rwanda, testifies before the Senate Human Rights and the Law Subcommittee during the 'Genocide and the Rule of Law' hearing on Capitol Hill in Washington 05 February 2007. AFP PHOTO/Jim WATSON (Photo credit should read JIM WATSON/AFP/Getty Images)

  • 'Hotel Rwanda' star Don Cheadle and Romeo Dallaire

    WASHINGTON - FEBRUARY 05: Justice Department Criminal Division Deputy Assistant Attorney General Sigal Mandelker (L) and Parliament of Canada Senator Romeo Dallaire, former commander of the UN Peace Keeping force in Rwanda, testify before the US Senate Judiciary Committee's Human Rights and the Law Subcommittee February 5, 2007 in Washington, DC. The subcommittee's inaugural hearing was titled 'Genocide and the Rule of Law.' (Photo by Chip Somodevilla/Getty Images)