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The first person whom Yana Muravinets tried to persuade to leave her house near the front line was a young woman who was five months pregnant.

She did not want to abandon her cows, calf or dog. She told Mr. Muravinets that she had invested energy and money in building her house near the southern Ukrainian city of Nikolaev and was afraid of losing it.

“I said, ‘None of this will be needed when you’re lying here dead.’ Muravinets said.

From the first days of the war, G. Muravinets, a 27-year-old photographer and videographer from the region, got a new volunteer job in the Red Cross: calling on people to evacuate. In phone calls, doorstep conversations, public appearances in village squares, sometimes even under fire, she tried to convince Ukrainians that the only sure way to survive was to leave everything behind.

Convincing people to give up everything they have built in a lifetime is one of the many dull jobs that war has created, and another challenge authority faced. While the city of Nikolaev managed to fend off the Russian attacks at the beginning of the war, the blows fell on it and its region, bringing mass death and destruction. Many residents have left, but hundreds of thousands are still there, and city ​​hall has urged people to leave.

RS. Muravinets, who has spent thousands of hours in recent months trying to justify the need for an evacuation, said she was unprepared for the task. According to her, she began to have panic attacks, but she felt that she had to continue.

“The war is not over and people continue to put themselves in danger,” she said in a Zoom call from Mykolaiv, which had to be interrupted due to shelling. “If I can convince one person to leave, that’s good enough.”

Boris Schebelsky, coordinator of the evacuation of people with disabilities, working with Mrs. Muravinets described her as a tireless worker, gentle with people who need to be evacuated and “always in a good mood” with colleagues.

Together with the Red Cross, she said she helped evacuate more than 2,500 people, but many stayed or returned days after leaving. It took a month and a half to convince the young pregnant woman to run away, and she only left after the windows of her house were broken twice. Muravinets said.

“Especially when it’s safe, people think everything is fine and live in illusions,” she said. “They decide to leave only when rockets come to their house.”

Credit…Letitia Vancon for The New York Times
Credit…Tyler Hicks/The New York Times

Two years before the war, G. Muravinets worked for Lactalis, a French dairy company with a factory in the area, and she traveled to farming villages to check the quality of milk.

Now that many country roads have become dangerous, she has made it to the outlying villages, avoiding fire using shortcuts she learned from her previous job. But now she needs to convince dairy farmers to give up their livelihood.

“It’s a lifetime for them,” she said. They say, “How can I leave my cows? How can I leave my cows?”

Before the war, she said that a cow could be worth up to $1,000. Now people take them to slaughterhouses to get meat for a fraction of it.

RS. Muravinets said some farmers who agreed to the evacuation left the pens open to keep the animals from starving, and now cows, bulls and ducks roam the village streets in search of food and water.

“People who had money, opportunities, cars, have already left,” she said. Muravinets said. But others, living in bunkers for months, told her they were ready to die there because they refused to leave.

She said she stayed for the same reason.

“The people who are left are those who are willing to sacrifice their lives.”

Valeria Safronova provided a report from New York.