'Half [of] me is dead': A Ukrainian survivor of the Azovstal siege waits to reunite her family

Anna Zaitseva and her husbandKirilohad only a few stolen moments together last winter in a deep, dark underground shelter.

Those fleeting, poignant reunionswere over before they started. They happened amid thecacophony of shellingand earth-shaking airstrikes as the Russian military's noose tightened around their hometown, the southern Ukrainian port city of Mariupol.

The young couple saw each other only twice for five minutes each time during Anna Zaitseva's 65 days trapped in the dank shelters of the sprawling Azovstal Iron and Steel Works a name and place now synonymous with the country's fierce resistance to the Russian invasion.

The willowy 26-year-old French language teacher who also has an almost perfect command of English fled along with her three-month-old baby boy to the industrial fortress as the invasion unfolded on Feb. 24.

Kirilo Zaitsev was a steelworker and also one of the Azovstal plant's defenders.

The last time the couple shared an embrace was in mid-March, whenthe city they'dgrown up in was about to be encircled.

"[Kirilo] knew it already," Annatold CBC News in a recent interview.

"I asked him if I would have possibility to see him again. And he will just keep on silent. He looked at me directly, he said to me that he loves me. And he was gone."

The siege of Mariupol and the Azovstal workscaptured the world's attention and galvanized Ukrainians during the initial Russian onslaught. While the city around the plant was reduced to a smoking ruin,itsdefenders refused to surrender until May 17.

A wounded Kirilo Zaitsev was whisked into captivity and an uncertain fate.

A former marine, he left the military at his wife's insistence so they could begin a family.

As they were awakened last winter by the first missile strikesmarking the beginning of the full-on invasion, he told his young wife he would join the local Azov Regiment, a unit within Ukraine's National Guard which had its beginnings as a far-right, ultra-nationalist battalion.

Annasaid her husband volunteered because of his previous military background and chose the closest unit.

"I had very mixed feelings, because from one point of view, I'm proud that he's a military, but from another point of view, I understood that I will be alone with my child," she said.

She has not heard from him since his capture. She has no idea where he is. In randomtexts from unknown numbers, he tellsher he loves her.

"I don't know if he hasn't access to proper food, water, medicine. Is he tortured or not?" shesaid.

Buried alive

Before she and her son, Sviatoslav, were evacuated through a humanitarian corridor, life underground at the plant was a haze of hunger, cold and misery.

At one point, the stress of the siege saw her breast milk dry up;the plant's defenders scrambled to find enough baby formula to keep her child alive. A direct hit on their bunker buried them inside, leaving the young woman with a concussion.

When they emerged from the deep tunnelsto board a waiting bus, her son had spent so much time underground that he didn't know what sunlight was. Anna had to explain it to him.

Evacuated from the ruins of the steel plant through a humanitarian corridor and processed through a Russian filtration camp, Anna was pulled aside because her husband was a member of the Azov Regiment. She said she was forced to strip naked while three officers of the FSB theFederal Security Service, successor to the KGB took turns examining her for neo-Nazi tattoo symbolsand interrogated her for hours.

Anna said she believes she was saved from further humiliation or worse by the presence of the International Red Cross.

"I can say that half [of] me is dead already," she said. "It was killed in the Azovstal plant."

The lingering effects of the concussion still bother her.

"You're in 65 days," she said. "I had this thought that I could be dead, my son could be dead. And definitely, I'm a new person now."

She said she often wonders how the experience has changed her.

"Maybe I'm stronger," Anna said. "But definitely right now, I have this power in me to fight, to fight for the people who are right nowvoiceless, who are right now in captivity. To fight right now for the children who are taken by force to Russia."

Thousands of children have been found in the basements of war-torn cities like Mariupol. Some are orphans. Others have been separated from their parents.

Russia claims that these children don't have parents or guardians to look after them, or that they can't be reached.

But an investigation by the Associated Press found that Russian officials have deported Ukrainian children to Russia or Russian-held territories without consent. AP reported that Russian officialslied to these kids by claimingthey weren't wanted by their parents,used them for propagandapurposes and gavethem Russian families and citizenship.

Anna Zaitseva'sstory is one of several featured in the documentary Freedom on Fire: Ukraine's Fight for Freedom, by U.S.-based filmmaker Evgeny Afineevsky.

The film is a stark, gritty look at the humanitarian crisiscaused by the war.

"We used to know that war istragedy and soldiers," Afneensky said. "This movie is not about tragedies and soldiers.

"It's about human stories. It's a mother who's praying every night that her child will wake up the next morning, and they'll be alive. It's a doctor who tried to save the lives of people It's volunteers. It's journalists like you who deliver stories on the front lines."

The documentary which was screened at the Toronto International Film Festival (TIFF) and in Halifax at last weekend's security forum, as well as in New York and Venice is an urgent call to the world's democracies, Afneensky said.

"Because if we neglect the situation, like we neglected the last eight years, what else happens?" he said, referringto the Russian annexation of Crimea in 2014. "What else can happen?"