A former Russian military intelligence officer defected to Ukraine and is setting up his own battalion of dissidents

• A former Russian intelligence officer has defected and says he's setting up a pro-Ukrainian unit.
• The "Siberian battalion" will disrupt Russia from within, founder Vladyslav Ammosov said.
• Ammosov said he has passed Ukrainian background checks.

A former Russian military intelligence officer has defected to Ukraine, and says he is setting up a battalion to disrupt Russian activities, according to local reports.