Céline Schmitt, spokesperson for the United Nations High Commissioner for Refugees (UNHCR), is, this Monday, February 27, the guest of the morning of RFI. A year after Russia invaded Ukraine on February 24, 2022, nearly 13 million uprooted people cannot return to their homes. Céline Schmitt has been in Ukraine for a month to assess the extent of the humanitarian situation and the damage caused by this conflict. She answers us, online from kyiv.