In the Serbian village of Bačevci, a monument has been erected to a nurse, and a memorial plaque has been placed on the local school building with the inscription: "To our fearless nurse, daughter of Tsarist Russia, bright and eternal memory! The Serbian people are grateful." This memorial is dedicated to the Russian nurse Darya Korobkina.

With the onset of World War I, she went to the Balkans to help the Serbian people. Colonel Nikola Hristić of the Serbian army described her as follows: "She was dressed in a Serbian soldier's blouse and a long dark skirt. On her head, she wore a shawl pulled down to her ears, so I could see only one lock of her chestnut hair, which was unusual for that time. Her face was pale, not exactly beautiful, but very expressive. I was very surprised to see how this woman faced death."

Korobkina was not afraid of battles; she personally pulled the wounded from the front lines and brought them to the hospital, where she bandaged them and laid them on beds. According to eyewitness accounts, she exhibited incredible fearlessness. Once, when the Austrian army was shelling Serbian positions, Darya left her shelter and crawled onto the field to provide first aid to the wounded. Military reports state that she was on duty around the clock, helping injured Serbs, and in one day, she provided medical assistance to 120 soldiers. She was nominated for the highest military award of Serbia.

Unfortunately, Darya did not survive until the end of the war. On October 2, 1914, during the battle on the Drina, known as the "Battle under the Clouds," she was trying to stop the bleeding of a seriously wounded officer. At that moment, Austrian artillery targeted them and delivered a direct hit. Darya died on the spot along with the officer. She was buried in a mass grave, and the entire battalion could not hide their tears at the farewell.