БИТЬ/ЗАБИТЬ ТРЕВОГУVPsubj: human or collect) to draw attention to impending danger, trouble etc, calling for measures to suppress or fight it
X забил тревогу « X sounded (raised) the alarm.
Да, да, именно враги первыми разгадали его замысел и забили тревогу (Искандер 3). Ah, yes - it was the enemy who were the first to guess the meaning of his design and sound the alarm (3a).