Why machines-guns placed just behind the front line why are they so close to the bunkers?

Machine guns are placed just behind the front line to provide immediate suppressive fire and support for infantry troops during combat. Their proximity to bunkers allows for quick repositioning and reinforcement, enhancing defensive capabilities against enemy advances. This positioning also enables better coordination with ground forces, maximizing their effectiveness in protecting key areas and maintaining control of the battlefield. Additionally, being close to bunkers offers cover and concealment, reducing the risk of enemy fire.