A Turkana boy holds on to his father's rifle in a village inside the Turkana region of the Ilemi Triangle, northwest Kenya December 21, 2014. The Ilemi Triangle is a disputed region in East Africa, claimed by South Sudan and Kenya, bordering also Ethiopia. The dispute arose from unclear wording of a 1914 treaty which tried to allow free movement of the Turkana people, nomadic herders who had traditionally grazed the area. (Photo by Goran Tomasevic/Reuters)

A Turkana man carries a rifle as he herds goats inside the Turkana region of the Ilemi Triangle, northwest Kenya December 21, 2014. (Photo by Goran Tomasevic/Reuters)

Turkana men carry rifles as they herd goats inside the Turkana region of the Ilemi Triangle, northwest Kenya December 21, 2014. (Photo by Goran Tomasevic/Reuters)

A Turkana man carries a rifle as he herds goats inside the Turkana region of the Ilemi Triangle, northwest Kenya December 21, 2014. (Photo by Goran Tomasevic/Reuters)

Turkana men carry rifles as they herd goats inside the Turkana region of the Ilemi Triangle, northwest Kenya December 21, 2014. (Photo by Goran Tomasevic/Reuters)

Turkana boys play with rifles in a village inside the Turkana region of the Ilemi Triangle, northwest Kenya December 21, 2014. (Photo by Goran Tomasevic/Reuters)

Turkana men stand outside a village inside the Turkana region of the Ilemi Triangle, northwest Kenya December 20, 2014. (Photo by Goran Tomasevic/Reuters)

Turkana men stand outside a village in the Turkana region of the Ilemi Triangle December 20, 2014. (Photo by Goran Tomasevic/Reuters)