During the latter years of American border operations, the 50 Meter signs were a common sight but served as little more than a warning that the border was ahead. In some areas, armored vehicles were not allowed within 50 meters of the border so the signs served as a reminder of restricted access. In earlier times, though, the 50 Meter Zone had greater importance.

The 50 Meter Zone got its start as a restricted 100 Meter Zone that was instituted some time between 1947 - 1951. Except for operations with German border agencies, American border patrols were not allowed to go any closer than 100 meters of the border. The purpose of the zone was to preclude inadvertent border crossings and lessen the opportunities for border incidents. As you can imagine, the restriction prevented U.S. patrols from getting a close look across the border, especially in wooded areas.

Other concerns also prompted changes along the 50 Meter Zone. Due to incidents of U.S. personnel crossing the border, USEUCOM directed on September 20, 1954, that signs in English be placed on hard surfaced roads along the border indicating the proximity of the border. No fixed distance from the border was prescribed for the signs, but in subsequent years instructions simply stated the signs would be erected 50 meters from the border unless terrain dictated otherwise. These signs would stay in place until the Iron Curtain collapsed in 1989.

Looking eastward from the 50 Meter zone.- US Army photo