KYIV, Ukraine — When Christopher James Campbell dropped out of school, sold his belongings and moved to Ukraine in the spring of 2022, his loved ones weren't sure why.
"He would always say, 'I feel like I have a unique ability to help. I have the knowledge to be here to fight, and I have the ability to help people,'" said Nelson Rumsey, Campbell's platoon sergeant when the two served in the U.S. Army in Iraq.
