Kharkiv, just 30 kilometres (18.6 miles) from the Russian border, has borne the brunt of many strikes throughout the war. Thousands of buildings have been damaged or destroyed. Throughout the region almost 3,000 civilians have been killed, 97 of them children. Just outside the city lies a collection of twisted metal remnants from attacks. It's a scrapyard of savagery - the remains of many of the Russian bombs, rockets, missiles and drones used to hit in and around Kharkiv over the past three and a half years. "This is the material evidence with which we, as prosecutors, will prove the guilt of Russia in committing war crimes," Dymtro Chubenko of the Kharkiv Region Prosecutor's Office tells me. Every piece of rocket and drone here has been carefully collected and analysed.

Nearby, in Kharkiv's cemetery, a mother and her family are placing flowers on their daughter's grave. Sofia was just 14 when a Russian glide bomb took her life last year. She was sitting on a park bench, enjoying the warm summer afternoon with a friend. I ask her mother if Trump's increasing pressure on Russia can bring any comfort, but she's not optimistic. "These conversations have already been going on too long," she tells me. "But so far there are no results… Hope is fading."