The Women's Royal Naval Service (WRNS; popularly and officially known as the Wrens) was the women's branch of the Royal Navy. First formed in 1917 for the First World War, it was disbanded in 1919, then revived in 1939 at the beginning of the Second World War, remaining active until integrated into the Royal Navy in 1993. Wrens included cooks, clerks, wireless telegraphists, radar plotters, weapons analysts, range assessors, electricians and air mechanics.