US Army veteran killed fighting for Ukraine had a "very strong sense" of right and wrong, father says

The father of a US Army veteran who was killed fighting for Ukraine earlier this month said Ukrainian commanders had warned his son that Russia’s invasion resembled “World War I or II” before he enlisted in the country's defense.

Andrew Peters, 28, died in action on Feb. 16 while serving with Ukraine's International Legion of Defense. 

His father, John Peters, told CNN’s Wolf Blitzer Monday that "we did our homework" researching the unit, which was created by President Volodymyr Zelensky to allow foreign citizens to join the Ukrainian resistance against Russian occupation and fight for global security.