In 2020, Armenia and Azerbaijan fought a 44-day war in the disputed Nagorno-Karabakh region. Since then, sporadic violence has flared up there. And some Armenians say another round of war is inevitable. There’s one weapon used by Azerbaijan’s military that makes Armenians especially nervous, and that’s the Bayraktar TB2 drones. Levi Bridges reports from Yerevan, the capital of Armenia.