In an ambulance, Corporal Zachary Moore lost consciousness after drinking a bottle of antidepressant medication at his base in South Korea.

"Call my mother, please call my mother," Moore technical commissioner pleaded with his comrades in an ambulance running from Hovey Base to St. Petersburg Hospital. Mary is in Uijeongbu, South Korea on August 1, 2017.

Moore's mother, Jeanette Nazario in Florida, USA, thousands of miles away, received a call. "Moore's teammates said he was in a critical condition, and they would notify him once he was settled again," she said.

Nazario was full of hope when an interpreter at the hospital said the test results showed her son had no brain damage. But in the end, Moore's heart stopped.

"I was ready to take care of my son for the rest of my life. At that time I thought he just needed to come back," Nazario said. "That's when someone knocked on the door and said it had passed away."

Moore died at St. Petersburg hospital. Mary was only hours after being brought in here. This Corporal is one of at least 9 soldiers, aged 18 to 32, of the 2nd Infantry Division based in South Korea, committed suicide between May 2016 and April this year.

Private female Courtney Shields, 18, is the youngest of the US soldiers in Korea to kill themselves. According to Tamara Miller, a former Air Force officer and lawyer representing the Shields family, the female soldier suffered from depression due to trauma and ended her life on April 26 while on leave at home.

When he was first deployed to South Korea to work as a signal support system specialist, Shields was a lively, cheerful person. But the female soldier seemed to have suffered some mental trauma during the mission, according to Miller.

"That's when Shields' mental state rapidly declines," Miller said. "We are trying to ask the US Army to investigate the possibility of a sexual assault on this girl."

The lawyer said before she died, Shields told her that she was looking for a doctor to treat depression, but her busy work prevented her from going to the doctor on an appointment.

Nazario, mother of Corporal Moore, said that his son began a nine-month deployment in South Korea in June 2017. Nearly a year earlier, Moore suffered a mental breakdown and briefly left his post when stationed at Hood, Texas.

Nazario said Moore was treated after the incident at the Hood base and continued to take anti-depressant medication when he arrived in Korea. Moore's unit did not directly fight, but was always on high alert for threats from North Korea.

"They take it to the most stressful place, even if it has a mental health problem. It's not only exhausted but also stressed," Nazario said.

After drinking a whole bottle of antidepressant medication to commit suicide on August 1, 2017, Moore changed his mind and informed the camp guards. "But it took me about 30 minutes to get my child into the ambulance, because I didn't understand why, even though my son made it clear that he was on medication," Nazario said. At that time, Moore began to lose consciousness.

Suicide cases in the United States cause anxiety among psychiatrists of the US military in South Korea. Captain Joseph Dragonetti, the psychiatrist of the 2nd Infantry Division, said the soldiers faced the same mental health risks as ordinary people and the unique challenges of their job.

The US military must implement suicidal measures, including raising awareness of suicide, opening more clinics and conducting periodic mental health assessments. Commanders also sought to abolish the stereotype that seeking help from a psychiatrist had a negative effect on promotion opportunities.

The efforts of psychiatrists to help prevent a number of suicides in US forces stationed in South Korea recently. Private Binh Austin Farrell, 22, wants to kill himself because he feels lonely because his fiancé demands a breakup and conflicts with his superior.

Sergeant William Smith knows Farrell's story when he hears from other officers, so he decides to help him. "I was told that there was a soldier who was bored and thought of hurting himself. I simply said let me take care of him," Smith said.

Smith took Farell to the mental health clinic at the hospital in Seoul, which used to be a military hospital. Farell shared his difficulties with Smith, from grievances because the superior's treatment made this soldier most useless to his loneliness. In the end, Farell abandoned his suicidal intent.

"I used to think I would be lonely for the rest of my life, but Smith made the situation change. When I was on the verge of being demobilized. Smith repeatedly faced difficult choices in his life, he showed me. life is not always dark and we should look to bright things, "Farell said.