Ukraine’s Ballistic Missile Strike on Moscow, Cold Launch Technology, SLBMs

The ongoing Russia-Ukraine conflict witnessed another significant development after reports indicated that Ukraine launched its first reported ballistic missile strike targeting Moscow. According to available reports, Russia’s S-400 Triumph air defence system intercepted and destroyed the incoming missile before it reached its target.

What Is a Ballistic Missile?

A ballistic missile is a guided missile that is powered during its initial launch phase and then follows a ballistic trajectory under the influence of gravity until it reaches its target. These missiles can carry either conventional or nuclear warheads and are primarily used for strategic deterrence and long-range military operations.

Key Features of Ballistic Missiles

• Powered only during the boost phase; after engine burnout, it follows a ballistic path.
• Travels at very high or hypersonic speeds, making interception difficult.
• Can carry conventional, nuclear, chemical, or biological warheads (depending on the country’s doctrine).
• Operates in three phases: Boost Phase, Midcourse Phase, and Terminal Phase.
• Used for strategic deterrence, battlefield operations, and precision strikes.
• Can be launched from land-based silos, mobile launchers, aircraft (limited), submarines, and naval vessels.
• Generally have a much longer range than cruise missiles.
• Advanced ballistic missiles may feature Multiple Independently Targetable Reentry Vehicles (MIRVs) and manoeuvrable re-entry vehicles.

Classification of Ballistic Missiles

Ballistic missiles are classified based on their maximum operational range. Each category serves different military and strategic objectives.

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Russia’s S-400 Air Defence System

The S-400 Triumph is Russia’s advanced long-range air defence missile system designed to intercept a wide range of aerial threats, including aircraft, drones, cruise missiles, and certain ballistic missiles. It is regarded as one of the world’s most capable integrated air defence systems.

• Developed by Russia’s Almaz-Antey defence company.
• Maximum engagement range of up to 400 km (depending on missile variant).
• Can intercept targets at altitudes of up to 30 km.
• Capable of engaging aircraft, stealth fighters, UAVs, cruise missiles, and ballistic missiles.
• Tracks hundreds of targets simultaneously and can engage multiple targets at once.
• Uses multiple interceptor missile types for different threat ranges.
• Equipped with advanced phased-array radar for long-range detection.
• Provides layered air defence by integrating with shorter-range missile systems.

Cold Launch Technology

Cold Launch Technology is a missile-launch method in which the missile is first ejected from its launch tube using compressed gas or a gas generator before its main rocket engine ignites. This technique protects the launch platform from the extreme heat and pressure produced by the rocket motor.

• Missile is expelled from the launch tube before engine ignition.
• Uses compressed gas or a gas generator instead of immediate rocket ignition.
• The rocket engine starts only after the missile safely clears the launcher.
• Significantly reduces the risk of damage to submarines and launch platforms.
• Improves crew safety during underwater missile launches.
• Enhances launch reliability and operational efficiency.
• Allows multiple missile launches with minimal structural stress.
• Has become the global standard for submarine-launched ballistic missiles.
• Used by major naval powers, including India, the United States, Russia, France, and China.

Submarine-Launched Ballistic Missiles (SLBMs)

Submarine-Launched Ballistic Missiles (SLBMs) are long-range ballistic missiles launched from specially designed ballistic missile submarines, providing a highly survivable and credible strategic deterrent capability.

• Form one of the three components of the Nuclear Triad (land, air, and sea-based nuclear forces).
• Provide a credible second-strike capability, ensuring retaliation even after a first attack.
• Generally launched using Cold Launch Technology, where the missile is ejected before its rocket engine ignites.
• Capable of carrying conventional or nuclear warheads, depending on mission requirements.
• Possess long operational ranges, enabling strikes on distant strategic targets.
• Submarines can remain hidden underwater for extended periods, making SLBMs difficult to detect and intercept.
• Enhance a nation’s strategic deterrence, maritime security, and nuclear stability.
• Require advanced navigation, communication, and underwater launch systems for accurate deployment.
• Operated by major naval powers, including India, the United States, Russia, France, China, and the United Kingdom.