PORT SUDAN, Sudan — Famine. Massacres. And now badly needed food and other supplies are under strain. Sudan on Wednesday entered a fourth year of a war that’s been called an “abandoned crisis,” as a new Middle East conflict throws into shadow the fighting that has forced 13 million people to flee their homes.The North African country is described as the world’s largest humanitarian challenge, notably in terms of displacement and hunger. There is no end in sight to the fighting between the military and the paramilitary group Rapid Support Forces, or RSF, which witnesses and aid groups say has laid waste to parts of the vast Darfur region.Growing evidence shows regional powers such as the United Arab Emirates backing rival combatants behind the scenes. Attempts by the United States and regional powers, now distracted by the Iran war, have failed to establish a ceasefire.“We’ve lost so many people in this war,” said Hussein Mohamed Shareef, running his fingers over the scar on his head where he said an RSF sniper had shot him in the city of Omdurman, near Khartoum, Sudan’s capital. He said at least 10 friends have been killed.An injured child at a camp for displaced people in Tawila, Darfur, Sudan, in October. Mohammed Jamal / ReutersAt least 59,000 people have been killed. At least 6,000 died over three days as the RSF rampaged through the Darfur outpost of el-Fasher in October, according to the United Nations, with U.N.-backed experts concluding that the offensive bore “the defining characteristics of genocide.” More than 11,000 people have gone missing over the course of the war, the Red Cross says.00:39Sudanese women's bodies turned into 'crime scenes'00:0000:00The war has pushed parts of Sudan into famine. The number of people with severe acute malnutrition, the most dangerous and deadly kind, is expected to increase to 800,000, the world’s foremost experts on food security, the Integrated Food Security Phase Classification, said in February.About 34 million people, or almost two out of three Sudanese, need assistance, the U.N. says. Only 63% of health facilities remain fully or partially functional amid disease outbreaks, including cholera, according to the World Health Organization.At a center for malnourished children in the Red Sea city of Port Sudan, health staff weighed crying babies and fed some through a tube in their nose.The number of severely malnourished children entering the 16-bed center has doubled since the war began, to 60 a week, staff said. Several children often must share a mattress.“I don’t know what will happen in the coming days,” Dr. Osman Karrar said.A woman holding a placard during a tree planting event commemorating the war in Sudan as it enters its fourth year, in Nairobi, Kenya, on Wednesday.Brian Inganga / APNow fuel prices in Sudan have increased more than 24% because of the Iran war and its effects on shipping, driving up food prices.“A plea from me: Please don’t call this the forgotten crisis. I’m referring to