Abstract: A wall retention system for abutting against and retaining a mass of earth, comprising in combination: (a) a set of flat facing slabs, each facing slab having an outer flat surface and an inner, reinforced surface. The facing slabs are edgewisely interlocked to form a single continuous wall structure. Foundation slabs abut on the ground, and support the lower portions of the facing slabs wherein the facing slabs are supported in generally upright condition. A number of elongated brace bars are provided, integrally carried at their inner ends by the facing slabs reinforced surface and transversely projecting therefrom at vertically spaced intervals. These tension members embeddingly anchor into the mass of earth to be retained. Hence, large horizontal loadings from the mass of earth can be sustained by the wall retention system, without compromising the angularity of the facing slabs relative to ground level.