RUTSHURU, Democratic Republic of Congo - The figure in military fatigues and rubber boots stood on the rutted road, framed between green walls of tangled equatorial forest. He leveled his assault rifle at a small huddle of people kneeling in the mud next to their truck.
Around them were their scattered, meager belongings: burlap sacks of grain, cooking pots and small suitcases of clothes.
Attacks like this one, witnessed by GlobalPost on a drizzly Monday morning in October, are an increasingly common scene in the lawless east of the Democratic Republic of Congo, as security deteriorates in the wake of yet another rebellion that began last year.
Our Land Cruiser rounded a bend in the thick forest and slid to a halt a few dozen meters from the scene of the crime. Spotting us, one of the armed men signaled to the others - all bearing AK47s - and then began running in our direction.
Christian, the driver, muttered in Swahili as he ground the clutch trying to find reverse. Our guide Vincent shouted in a mix of Swahili and French. My eyes were fixed on the figure drawing closer, loping through puddles, gun swinging awkwardly in front of him.
Eastern Congo is crosshatched with armed groups that compete and coalesce with baffling fluidity. They fight each other, but reserve most of their depredations for civilians.
The latest rebellion began last April. It has so far forced hundreds of thousands to flee their homes, and triggered a new spasm of rape, child recruitment and murder.
Congo's armed groups display a horrific capacity for brutality. Whether corrupt soldiers, rebel fighters, armed bandits, gangs of juju-peddling mystics, or members of any number of ethnically, regionally or politically defined militias, the men and boys with guns have turned eastern Congo into a byword for chaos.
Nowhere is this clearer than in North Kivu, an eastern province that abuts Rwanda and Uganda, nearly a thousand miles from the capital Kinshasa. It is a fertile territory of extravagantly folded hills, abundantly rich in minerals. And it is almost continually in crisis.
The wealth of coltan, tin, gold and diamonds beneath the earth fuel the fighting.
It also includes parts of Virunga National Park, Africa's oldest nature reserve. Virunga is home to diverse landscapes and a vast array of animals, including hundreds of endangered mountain gorillas.
Virunga now faces the acute threat of insecurity, and the more chronic one of oil exploration - as western companies eye possible deposits beneath its lush slopes.
North Kivu is also home to a large and growing population of displaced people living in perpetual motion. They flee one insurrection after another, moving between temporary towns of makeshift shacks that sit on jagged, black volcanic rock.
When these people are on the move, they never know when they'll be stopped, or by whom.
As the leader of the pack holding up the truck ran toward us, it became clear that he was just a boy; the assault rifle in his hands dwarfed him.
We sped backward down the road, clattering through puddles and potholes. The figure of the gunman receded as we careened around a corner, spun the car 180-degrees and headed in the opposite direction. As the panic subsided, Vincent broke into a falsetto rendition of a local pop song with the refrain, "I love my life!"
We had been lucky. The people on the truck in front had not. Driving away we passed three more trucks, loaded with goods and people, headed toward the ambush. We told them about the danger on the road ahead but the drivers only shrugged. It's the only road south, what choice did they have?
A HISTORY OF INSECURITY
Insecurity has been woven into the fabric of North Kivu since at least the mid-1990s. It was then that the Hutu killers responsible for Rwanda's genocide escaped across the western border into Congo. Two regional wars followed as Rwanda's new Tutsi rulers sought to hunt down those responsible for the mass killings.
The first invasion overthrew the robber-president Mobutu Sese Seko. The second sought to oust his successor, Laurent Kabila, but failed.
In recent years, the conflicts have been more clandestine, with foreign nations backing local proxies rather than using their own invading armies. The combustible mix becomes explosive when combined with the region's staggering natural wealth.
Rebellions frequently begin in North Kivu. The most recent one started nine months ago when army soldiers loyal to Bosco Ntaganda, a Tutsi Congolese general indicted for war crimes by the International Criminal Court, staged a mutiny. With the alleged backing of Rwanda, Ntaganda set out to carve a fiefdom among the forests and hills bordering Virunga. The rebels called themselves of the March 23 Movement, or M23.
An uneasy detente between M23 and the Congolese army was broken in November when the rebels marched on Goma, the provincial capital, and occupied the city for close to two weeks before withdrawing.