The Royal Ordnance Factory (ROF) was a series of government-owned factories in the United Kingdom responsible for the production of military munitions and equipment. Established during World War I, these factories played a crucial role in supplying the British Armed Forces with weapons, ammunition, and explosives. The ROF was instrumental in supporting the war effort and continued to operate through World War II and beyond. After the war, the ROF underwent various changes, including privatization in the 1980s. The factories produced a wide range of products, including artillery shells and small arms ammunition. Eventually, many of the ROF sites were closed or repurposed, but their legacy remains significant in the history of British military manufacturing.