East Germany introduced the Berlin Wall’s characteristic third-generation concrete barrier in 1965.
The Wall changed substantially after its first construction in August 1961. Early defenses used barbed wire, concrete blocks, and temporary arrangements, but East German authorities continued improving the frontier. The third-generation design used large, standardized concrete panels topped by a smooth cylindrical pipe. This made the barrier difficult to climb and gave the Wall its familiar appearance in photographs from the later 1960s and 1970s.
The concrete face was only the most visible element. The wider border system also included inner fences, vehicle obstacles, watchtowers, patrol roads, lighting, and a cleared area commonly called the death strip. Because the system was repeatedly rebuilt, photographs from different years can show noticeably different barriers. The famous concrete design therefore should not be treated as the exact form present on opening day in 1961.