A soldier of Tanzanian contingent from the UN peacekeeping mission in the Central African Republic (MINUSCA) patrols the town of Gamboula, threatened by the Siriri group, on July 6, 2018. Known as Siriri, the force is drawn mainly from Fulani cattle herders, who say they took up arms to deal with rustlers. Cattle theft is frequent in the west of the country, where seasonal migration of livestock is common practice. Led by an individual named Ardo Abba, Siriri ("peace" in Sango) has led raids on villages, and warned the UN force of reprisals if its troops continue to operate in the region. The movement is the latest armed group to surface in a conflict that has displaced more than a quarter of CAR's population of 4.5 million people and seen no fewer than seven peace accords signed and fail. / AFP PHOTO / FLORENT VERGNES