[4] From 1991 to 2014 Barna worked as a teacher of mathematics, physics, computer science, and pre-service training in Rydoduby and Bilobozhnytsia in Ternopil Oblast's Chortkiv Raion.

[5] In the same year he took part in by-elections for the Verkhovna Rada (Ukraine's national parliament) as a candidate in the 167th electoral district in Ternopil Oblast, but he withdrew his candidacy in favour of Serhii Zhyzhko [uk].

[5] In the second round of 2004 Ukrainian presidential election Barna worked in the electoral headquarters of Viktor Yushchenko in Kharkiv Oblast's Chuhuiv Raion.

[5] In the 2002 Ukrainian parliamentary election Barna headed the electoral headquarters for Yulia Tymoshenko Bloc in Chuhuiv Raion.

[1] In the 2014 Ukrainian parliamentary election Barna was a candidate for the Petro Poroshenko Bloc in electoral district 167.

A spokesman for the brigade stated the body of Barna had not yet been evacuated from the battlefield, so he was not officially declared dead.