Minuteman III is a US Cold War-era intercontinental ballistic missile deployed in the 1970s. According to public data, the United States has about 400 Minuteman III ICBMs armed with a single warhead each. In 2015, the US nuclear arsenal underwent expensive modernization that prolonged Minuteman III's service to the 2030s.
Earlier, experts explained to Sputnik that recent Minuteman III launches are a regular audit of the strategic forces rather than nuclear saber-rattling.