The Construction Service of the marine artillery (which designed and engineered the naval artillery guns in the metropolitan arsenals), became an integral part of the colonial artillery following the reorganisation of 1900. In 1909 those colonial artillery officers who specialised in artillery design and manufacture work were transferred into the newly created "Engineers of Naval Artillery"; a newly created corps of the French Navy which subsequently merged with the Naval Engineer Corps (responsible for the construction of naval ships) during the Second World War.