Bolt position (military)

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Course of the Siegfried Line with the Ettlinger Riegel at the kink near Karlsruhe

The bolt position is a defensive military position . Its purpose is to prevent an enemy who has broken through the neighboring front section from rolling up the front from there . It runs behind the front usually at right angles to it and is mostly through temporary field fortifications as tank traps and rifle or ditches or permanent fasteners such as bunker strengthened.

Examples are the Ettlinger bar or the Orscholzriegel as part of the Siegfried Line .