Alejandro A. Vilches Alarcón (Seville, 1980) Mr. Vilches have a Naval Engineering degree by the University of Cadiz, in Propulsion systems. During the last twenty years had worked in Spanish, French and UK shipyards, both in civilian and military projects. At the same time he had published articles in specialized magazines in Spanish, French, UK and US markets. Is also author of four books in Spanish language about Naval History, focused in Soviet Submarines and Second World War naval operations. Actually he works in Gibraltar shipyards.