From Our Own Correspondent

Kate Adie introduces stories from Ukraine, Ireland, Mexico, the United States and Italy.Kill Russian soldiers, win points: a sobering new scheme for Ukrainians soldiers rewards units with new battlefield equipment, each time they eliminate enemy troops. Paul Adams met the government minister behind the scheme, and hears what Ukrainian soldiers on the frontline think of it.In Ireland, the excavation of the bodies of hundreds of babies and young children got underway this week at an unmarked mass grave in Tuam. Chris Page discovers the decision to exhume the remains has not been entirely well received by locals, as Ireland continues to confront the secrets of its church-run institutions.A severe drought has been affecting large areas of Northern Mexico and Texas, which has led to growing cross-border tensions over access to water. Will Grant reports from the northern Mexican state of Chihuahua.Donald Trump’s immigration crackdown has taken a much more assertive approach than many expected. Sophie Williams visit