Aleksey Kachko, co-owner of the small pizzeria "Pizza Veterano" in Mariupol, hands out pizza to Ukrainian servicemen at the frontline with Russian-backed separatists on July 19, 2018. There's no knock on the door, just the tantalising smell of melted cheese, ham and tomato sauce reaching the noses of Ukrainian soldiers. The pizza delivery man has arrived. As the war goes on in Ukraine's separatist east, some veterans of the conflict are risking their lives by going back to the frontline to bring pizza to those still in the trenches. / AFP PHOTO / Aleksey FILIPPOV

Aleksey Kachko, co-owner of the small pizzeria "Pizza Veterano" in Mariupol, hands out pizza to Ukrainian servicemen at the frontline with Russian-backed separatists on July 19, 2018. As There's no knock on the door, just the tantalising smell of melted cheese, ham and tomato sauce reaching the noses of Ukrainian soldiers. The pizza delivery man has arrived. As the war goes on in Ukraine's separatist east, some veterans of the conflict are risking their lives by going back to the frontline to bring pizza to those still in the trenches. / AFP PHOTO / Aleksey FILIPPOV

Aleksey Kachko, co-owner of the small pizzeria "Pizza Veterano" in Mariupol, hands out pizza to Ukrainian servicemen at the frontline with Russian-backed separatists on July 19, 2018. As There's no knock on the door, just the tantalising smell of melted cheese, ham and tomato sauce reaching the noses of Ukrainian soldiers. The pizza delivery man has arrived. As the war goes on in Ukraine's separatist east, some veterans of the conflict are risking their lives by going back to the frontline to bring pizza to those still in the trenches. / AFP PHOTO / Aleksey FILIPPOV

Aleksey Kachko, co-owner of the small pizzeria "Pizza Veterano" in Mariupol, hands out pizza to Ukrainian servicemen at the frontline with Russian-backed separatists on July 19, 2018. There's no knock on the door, just the tantalising smell of melted cheese, ham and tomato sauce reaching the noses of Ukrainian soldiers. The pizza delivery man has arrived. As the war goes on in Ukraine's separatist east, some veterans of the conflict are risking their lives by going back to the frontline to bring pizza to those still in the trenches. / AFP PHOTO / Aleksey FILIPPOV

Aleksey Kachko, co-owner of the small pizzeria "Pizza Veterano" in Mariupol, hands out pizza to Ukrainian servicemen at the frontline with Russian-backed separatists on July 19, 2018. As There's no knock on the door, just the tantalising smell of melted cheese, ham and tomato sauce reaching the noses of Ukrainian soldiers. The pizza delivery man has arrived. As the war goes on in Ukraine's separatist east, some veterans of the conflict are risking their lives by going back to the frontline to bring pizza to those still in the trenches. / AFP PHOTO / Aleksey FILIPPOV

Ukrainian servicemen who fight against Russian-backed separatists hold a box with pizza delivered to the frontline by Aleksey Kachko, co-owner of small pizzeria "Pizza Veterano" in Mariupol, on July 19, 2018. As There's no knock on the door, just the tantalising smell of melted cheese, ham and tomato sauce reaching the noses of Ukrainian soldiers. The pizza delivery man has arrived. As the war goes on in Ukraine's separatist east, some veterans of the conflict are risking their lives by going back to the frontline to bring pizza to those still in the trenches. / AFP PHOTO / Aleksey FILIPPOV

A Ukrainian serviceman who fights against Russian-backed separatists carries boxes with pizza delivered to the frontline by Aleksey Kachko, co-owner of small pizzeria "Pizza Veterano" in Mariupol, on July 19, 2018. As There's no knock on the door, just the tantalising smell of melted cheese, ham and tomato sauce reaching the noses of Ukrainian soldiers. The pizza delivery man has arrived. As the war goes on in Ukraine's separatist east, some veterans of the conflict are risking their lives by going back to the frontline to bring pizza to those still in the trenches. / AFP PHOTO / Aleksey FILIPPOV

A Ukrainian serviceman who fights against Russian-backed separatists carries boxes with pizza delivered to the frontline by Aleksey Kachko, co-owner of small pizzeria "Pizza Veterano" in Mariupol, on July 19, 2018. As There's no knock on the door, just the tantalising smell of melted cheese, ham and tomato sauce reaching the noses of Ukrainian soldiers. The pizza delivery man has arrived. As the war goes on in Ukraine's separatist east, some veterans of the conflict are risking their lives by going back to the frontline to bring pizza to those still in the trenches. / AFP PHOTO / Aleksey FILIPPOV

Ukrainian servicemen who fight against Russian-backed separatists carry boxes with pizza delivered to the frontline by Aleksey Kachko, co-owner of small pizzeria "Pizza Veterano" in Mariupol, on July 19, 2018. As There's no knock on the door, just the tantalising smell of melted cheese, ham and tomato sauce reaching the noses of Ukrainian soldiers. The pizza delivery man has arrived. As the war goes on in Ukraine's separatist east, some veterans of the conflict are risking their lives by going back to the frontline to bring pizza to those still in the trenches. / AFP PHOTO / Aleksey FILIPPOV

A Ukrainian serviceman who fights against Russian-backed separatists carries boxes with pizzas delivered to the frontline by Aleksey Kachko, co-owner of small pizzeria "Pizza Veterano", in Mariupol on July 19, 2018. As There's no knock on the door, just the tantalising smell of melted cheese, ham and tomato sauce reaching the noses of Ukrainian soldiers. The pizza delivery man has arrived. As the war goes on in Ukraine's separatist east, some veterans of the conflict are risking their lives by going back to the frontline to bring pizza to those still in the trenches. / AFP PHOTO / Aleksey FILIPPOV

A Ukrainian serviceman who fights against Russian-backed separatists carries boxes with pizza delivered to the frontline by Aleksey Kachko, co-owner of small pizzeria "Pizza Veterano" in Mariupol, on July 19, 2018. As There's no knock on the door, just the tantalising smell of melted cheese, ham and tomato sauce reaching the noses of Ukrainian soldiers. The pizza delivery man has arrived. As the war goes on in Ukraine's separatist east, some veterans of the conflict are risking their lives by going back to the frontline to bring pizza to those still in the trenches. / AFP PHOTO / Aleksey FILIPPOV

An employee of pizzeria "Pizza Veterano" prepares pizza to be delivered to the frontline for Ukrainian servicemen fighting against Russian-backed separatists, on July 18, 2018 in Mariupol. There's no knock on the door, just the tantalising smell of melted cheese, ham and tomato sauce reaching the noses of Ukrainian soldiers. The pizza delivery man has arrived. As the war goes on in Ukraine's separatist east, some veterans of the conflict are risking their lives by going back to the frontline to bring pizza to those still in the trenches. / AFP PHOTO / Aleksey FILIPPOV

An employee of pizzeria "Pizza Veterano" prepares pizza to be delivered to the frontline for Ukrainian servicemen fighting against Russian-backed separatists, on July 18, 2018 in Mariupol. There's no knock on the door, just the tantalising smell of melted cheese, ham and tomato sauce reaching the noses of Ukrainian soldiers. The pizza delivery man has arrived. As the war goes on in Ukraine's separatist east, some veterans of the conflict are risking their lives by going back to the frontline to bring pizza to those still in the trenches. / AFP PHOTO / Aleksey FILIPPOV

Pizza prepared by "Pizza Veterano" is prepared to be delivered to the frontline for Ukrainian servicemen fighting against Russian-backed separatists, on July 18, 2018 in Mariupol. There's no knock on the door, just the tantalising smell of melted cheese, ham and tomato sauce reaching the noses of Ukrainian soldiers. The pizza delivery man has arrived. As the war goes on in Ukraine's separatist east, some veterans of the conflict are risking their lives by going back to the frontline to bring pizza to those still in the trenches. / AFP PHOTO / Aleksey FILIPPOV