@beyondhow: How Japan Built a 400-Km Wall to Hold Back the Ocean 🌊 Part- 4 #beyondhow #viral #japan #tsunami #infrastructure Keywords :- Japan tsunami wall,tsunami wall Japan,Japan tsunami defense,tsunami barrier,tsunami protection,coastal defense,coastal engineering,seawall construction,massive seawall,giant sea wall,Japan engineering,Japanese engineering,civil engineering,mega engineering,megaprojects,Japan construction,Tohoku tsunami,2011 Japan tsunami,coastal protection,disaster prevention,engineering documentary,construction documentary,tsunami defense system,Beyond How

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Thursday 24 September 2026 13:15:02 GMT