Russia is set to deploy the RS-28 Sarmat intercontinental ballistic missile, known as 'Satan 2', to replace older missiles. This advanced nuclear missile can carry multiple warheads, reaching targets across the U.

The RS-28 Sarmat missile, nicknamed Satan II, are capable of carrying multiple nuclear warheads and could potentially strike targets thousands of miles away - including the UK

Experts say the missile is more powerful than the Oreshnik used by Russia to strike Ukraine last week, but has been beset by 'catastrophic' failures