The US and China: Are we heading for space wars? | BBC News

Key Concepts:

• Hypersonic Weapons (Mach 5+)
• Intercontinental Ballistic Missiles (ICBMs)
• Hypersonic Glide Vehicles (HGVs)
• Typhon Missile System (Tomahawk & SM-6)
• Land-Based Missile Interceptors
• Space-Based Interceptors
• Layered Defense Systems
• Kinetic vs. Non-Kinetic Interception
• Boost Phase Interception
• Mid-Course Interception

1. Introduction to Hypersonic Weapons

• The discussion centers on the escalating arms race, particularly the development and deployment of hypersonic weapons.
• Hypersonic weapons are defined as those traveling at Mach 5 (five times the speed of sound) or higher, with some technologies potentially exceeding Mach 20.
• The key difference between hypersonic weapons and ICBMs lies in their trajectory. ICBMs follow a predictable parabolic path, entering low Earth orbit, while hypersonic weapons utilize a "hypersonic glide system" or "hypersonic body" for maneuverability during flight.
• This maneuverability makes them difficult to intercept and counter.

2. US Deployment of the Typhon System to Japan

• The US has deployed the Typhon missile system to Japan to address a perceived gap in land-based medium-range missile interceptor capabilities.
• The Typhon system integrates two existing missiles: the Tomahawk land attack missile (cruise missile with a 1,000-mile range) and the SM-6 interceptor.
• The SM-6 interceptor, while not technically hypersonic (Mach 3), can intercept ballistic missiles.
• The Typhon system is a land-based adaptation of traditionally naval-based missile capabilities.
• The deployment location in Iwakuni, near Hiroshima, places North Korea and parts of China within range of the system's missiles.

3. Reactions from China and Russia

• China has expressed diplomatic pushback against the Typhon deployment and is expected to escalate its military capabilities in response.
• Russia has already deployed the Bastion K300 missile system on the Kuril Islands, which are near Japan. While the K300 cannot reach the Japanese mainland, it can intercept naval targets in the area.

4. Global Hypersonic Arms Race: China's Lead

• China is considered to be significantly ahead in the development of hypersonic weapons, followed by Russia. The West, particularly the US and the UK, lags behind.
• China has been investing heavily in hypersonic weapons for the past 20 years, exemplified by the Dongfeng-17 missile, which launches a hypersonic warhead from the stratosphere.
• Russia possesses weapons like the Avangard and the Kinzhal. While President Putin has claimed the Kinzhal is unstoppable, it has been shot down in Ukraine.

5. US and UK Hypersonic Development Efforts

• The US is developing the Dark Eagle long-range hypersonic weapon system, expected to be fielded by the end of 2025.
• The UK is significantly behind in hypersonic development but is conducting propulsion tests in collaboration with the US at NASA Langley Laboratory.
• The UK's defense minister has called these tests a "landmark moment," but operational deployment is still years away.

6. Countering Hypersonic Threats: Layered Defense and Space-Based Interceptors

• The US and the West are focusing on a layered defense approach to counter hypersonic threats, similar to existing systems like Iron Dome and THAAD.
• This involves kinetic (physical interception) and non-kinetic (electronic warfare, cyberattacks) means of defense.
• Defense strategies include "left of launch" (attacking before launch), boost phase interception, and mid-course interception.
• The Missile Defense Agency is exploring space-based interceptors to decrease engagement time and provide more opportunities to intercept targets in mid-course.
• The engagement timeline for intercepting hypersonic weapons is significantly reduced, potentially requiring autonomous systems for decision-making.

7. Conclusion

• The development and deployment of hypersonic weapons are driving a global arms race, with China currently holding a significant lead.
• The US is deploying systems like the Typhon to address capability gaps and is exploring advanced defense strategies, including space-based interceptors.
• The maneuverability and speed of hypersonic weapons pose significant challenges to existing defense systems, necessitating new technologies and approaches.