Military arsenals are facilities where a country's weapons and military equipment are stored, maintained, and sometimes manufactured. These arsenals can include a variety of items such as firearms, ammunition, tanks, and aircraft. They play a crucial role in national defense by ensuring that armed forces have the necessary resources to protect the country. In addition to storage, military arsenals often conduct research and development to improve existing weapons and create new technologies. This can involve collaboration with defense contractors and scientists. Countries maintain these arsenals to ensure readiness and to support their military operations when needed.