Unnamed US officials have reported a significant rise in Ukraine's death toll, with the BBC's Quentin Sommerville witnessing the solemn process of counting the deceased near the Donetsk front line.

In this somber setting, 26-year-old Margo, stationed at a small brick mortuary, expresses her desire to apologize and express gratitude to the unidentified soldiers who have fallen. Her duty involves meticulously documenting the details of those who have lost their lives.

Ukraine has chosen not to disclose an official count of war-related deaths, citing national security reasons. However, US sources, as reported by the New York Times, estimate a staggering 70,000 deaths and up to 120,000 injuries, a significant contrast to Ukraine's estimated armed forces of half a million. The United Nations has recorded 9,177 civilian deaths thus far.

Margo bears a tattoo on her right arm symbolizing a mother and child, along with her son's birthdate. Her nails proudly display Ukraine's colors, complementing her "I'M UKRAINIAN" T-shirt.

She shares the emotional toll of her role, particularly when encountering young soldiers who met an untimely end, emphasizing that they were "killed for their own land." Her mission now centers on helping these fallen soldiers find their way home.

She recounts the most challenging day when her common-law husband, Andrii, arrived at the mortuary after losing his life in battle at just 23 years old in December 2022. Despite her grief, she believes her place is among those who serve the fallen.

The job has transformed her, making her as strong as steel. While she endures the emotional burden, her tears remain hidden until she's alone at home.

US Pentagon leaks in April suggested around 17,500 Ukrainian deaths, significantly lower than the recent estimate of over 70,000 casualties. The shift can be attributed partly to the counter-offensive in the south, which placed a heavy burden on young, newly trained soldiers.

The stark reality of the casualty toll is evident in Ukraine's cemeteries. In Krasnopilske Cemetery, sunflowers hang their heads like an honor guard for the graves, which extend ever closer to the cemetery's edges.

Oksana, grieving for her husband Pavlo, speaks of his dedication to defending Ukraine. Identifying his body was challenging due to burns, but a tattoo eventually led to recognition.

Ukrainian flags flutter above each grave, marking the collective loss that stretches across the battlefields. Despite the overwhelming grief, determination to prevail remains unwavering.

Oksana and Pavlo made a pact - if he fell, she would join the military. She now serves in an aerial surveillance drone unit near Bakhmut.

A week later, Oksana heads to a forward position, seeking a Russian anti-tank unit targeting Ukrainian forces. The deafening sound of artillery fire fills the air.

In the face of danger, Oksana explains her moral duty to continue her husband's mission. Ukrainian Deputy Defence Minister Hanna Maliar warns against revealing casualty numbers, citing their value to the enemy in predicting Ukraine's actions.

In the 68th Jaeger Brigade, seasoned veterans like "Lermontov" foresee a protracted war, doubting Russia's willingness to cease hostilities. Young soldiers now realize they'll be away from home longer than initially expected.

Colonel Oleksii, the brigade's commander, reflects on the sacrifices made, expressing humility and gratitude to the families of the fallen. He recognizes the challenges faced in providing safety and planning for their operations.