What is the main purpose of using smoke in an infantry operation?

The main purpose of using smoke in an infantry operation is to provide concealment and obscure enemy observation. When smoke is deployed, it creates a visual barrier that impairs the enemy's ability to see friendly forces, their movements, and their positions. This can be critical for several tactical maneuvers, such as advancing toward the enemy, repositioning forces, or executing a withdrawal. By obscuring visibility, smoke allows for greater freedom of movement and helps protect troops from enemy fire.

Moreover, while other uses of smoke, such as creating diversions or signaling, can be beneficial in specific scenarios, they do not encapsulate the primary tactical reason for smoke deployment. The predominant role of smoke in combat scenarios is to enhance survivability and mission execution through concealment, making it an essential tactic in infantry operations.