More than 30 million people, over half of them children, are in need of aid in Sudan after twenty months of war, the United Nations said on Monday.The UN has launched a $4.2 billion call for funds, targeting 20.9 million people across Sudan from a total of 30.4 million people it said are in need in what it called “an unprecedented humanitarian crisis.”For all the latest headlines follow our Google News channel online or via the app.Sudan has been torn apart and pushed to the brink of famine by the war that erupted in April 2023 between the Sudanese army and the paramilitary Rapid Support Forces (RSF).Tens of thousands of people have been killed and more than eight million internally displaced, which, in addition to 2.7 million displaced before the war, has made Sudan the world’s largest internal displacement crisis.A further 3.3 million people have fled across Sudan’s borders to escape the war, which means over a quarter of the country’s pre-war population, estimated at around 50