Salient is a military word, it is actually a battlefield feature that opens into the enemy territory, and hence the salient is covered by the enemy from three sides, making the troops which occupy the salient in the worst possible condition. The enemy's line which faces a salient is considered as a re-entrant it is like an angle which points inwards. The worst is having a deep salient which is vulnerable because it is being "pinched out" across the base and forms a pocket, under which the defenders become isolated.
Salient formation can take place in many ways. An attacker produces a salient inside his own line for making a broad, frontal attack which is successful only in the centre, and becomes the tip of the salient.
Salient formation can take place in many ways. An attacker produces a salient inside his own line for making a broad, frontal attack which is successful only in the centre, and becomes the tip of the salient.