Ms Kaur said they began receiving video calls from unknown men around the same time.
And war technology keeps evolving. Now there's a new threat – drones equipped with a real fibre optic cable which unrolls as they fly. "We cannot detect them or neutralise them, so there are probably a lot more drones in the area right now than we know," says Yurii.As we drive into the artillery position hidden under trees and bushes, soldiers are already loading the gun. It's a French made self-propelled artillery gun called the "Caesar". Scores have been deployed in Ukraine since the start of the war, and France has been trying to ramp up production.
"I'm very impressed by its accuracy, and we can use a large range of ammunition. The most important thing is that bringing it into combat is very fast. It is much more effective than the old Soviet equipment I've used," says Kozak.Ukrainian soldiers fire four rounds, each one emitting a deafening sound. From around us, we also hear the sound of incoming shells. The battle rages on."As you can hear, there is a wave of assaults from the enemy and we need a lot of ammunition to suppress that. We hope our international partners can give us as much ammunition as possible, because if we have to start choosing priority and non-priority targets then the enemy will be successful," says Kozak.
We ask the soldiers how they feel about suggestions that Ukraine will have to make concessions, that it might have to give up land to secure peace."It's painful to hear that. Even I want to go home to my family. My daughter is eight and I miss her so much. But we need to be strong. I don't believe that if we give up some territory, they will stop. In a couple of years, they will return and start over," says Yurii.
"A person who has not come here, who hasn't felt the consequences of Russian aggression, those armchair commentators say you can give up land and everything will be over. They will never understand how many brothers and friends we have lost. We shouldn't give up a single metre of our land," says Kozak.
The cost Ukraine has paid to defend its land is visible everywhere, most acutely in the photos of smiling, young soldiers posted by the side of highways, on memorial walls in central city squares, and on rows and rows of freshly dug graves in the country.The anti-establishment candidates received three times as many votes as they did in the last presidential election in 2020.
While those voters support Nawrocki's socially conservative views, some libertarians disagree with his support for generous state benefits for the less well-off.Both candidates led large, rival patriotic marches in Warsaw last Sunday to show who had the biggest support.
Almost all the participants at Nawrocki's rally carried the red-and-white Polish flag. No-one had the blue EU flag. One banner read "Enough of Tusk's [demolition] of democracy".Magdalena and her sister Marta said Nawrocki's patriotism was important. "We care first for our family, then the nation and after that the world," Magdalena told me.