Back in May, when China illegally deployed the HYSY-981 oil drill in Vietnam exclusive economic zone, pictures of P-15M Termit anti-ship missiles on transport has emerged on the internet. These missiles were carried publicly and used to arm the OSA-II missile boats. Each missile carries 450kg of shaped charge high explosive and has maximum range of 80km.

But unbeknownst to many, during that intense period, several Bastion-P units are also moving and maneuvering into combat positions. They formed a killzone with radius up to 300km, enough to covering the entire deployment zone of the enemy. It guarantees a death zone should the Chinese military vessels try to fire upon the Vietnamese vessels with their weapons.

Luckily, the Chinese withdrew and no arm conflict broke out.