UPSC CARE Mains Practice 3rd March 2026
Mains Practice Questions for the Day
- Missile defence sustainability has become a decisive factor in modern high-intensity conflicts. Examine in the context of the recent U.S.–Iran hostilities. (GS Paper II (International Relations; Global security)
- Missile defence systems have become a crucial component of modern warfare, as seen in the recent U.S.–Iran conflict. Explain how missile interceptors work and examine their strategic significance and limitations. (GS Paper II/III – International Relations / Science & Technology / Security)
Q. Missile defence sustainability has become a decisive factor in modern high-intensity conflicts. Examine in the context of the recent U.S.–Iran hostilities. (GS Paper II (International Relations; Global security)
Introduction:
Recent hostilities between a U.S.-led coalition and Iran have highlighted the central role of Integrated Air and Missile Defence (IAMD) systems in modern warfare. The conflict demonstrates that missile defence is not only about interception capability but also about cost, stockpile sustainability, and industrial capacity.
Body
1. Shift Towards Layered Missile Defence
Modern conflicts employ multi-layered systems such as Arrow-3 (exo-atmospheric), THAAD, Patriot, David’s Sling, and Iron Dome. These systems aim to intercept threats at different stages of flight, enhancing defensive depth.
2. Cost Asymmetry and Saturation Attacks
Iran’s strategy of launching large numbers of relatively inexpensive missiles and drones creates cost asymmetry. For instance, a Patriot PAC-3 MSE interceptor costs nearly $4 million, while incoming drones may cost far less. Saturation attacks aim to exhaust interceptor stockpiles.
3. Industrial and Logistical Constraints
High-tempo warfare depletes stocks rapidly. Reports indicate that replenishing advanced systems like THAAD may take over a year. Production capacity has not scaled proportionately to modern combat requirements.
4. Rise of Directed Energy Systems
To address sustainability challenges, systems like Iron Beam (laser) and IFPC are being deployed to counter cheaper threats at lower cost per shot.
Way Forward
- Expand defence industrial capacity for faster replenishment.
- Increase deployment of low-cost interceptors and directed energy systems.
- Strengthen sensor fusion and real-time command integration.
- Promote regional de-escalation mechanisms to prevent prolonged missile exchanges.
Conclusion:
The U.S.–Iran conflict underscores that future wars will be shaped not merely by offensive firepower but by the ability to sustain defensive capabilities. Ensuring strategic stability requires a balance between technological innovation, industrial readiness, and escalation control mechanisms.
Q. Missile defence systems have become a crucial component of modern warfare, as seen in the recent U.S.–Iran conflict. Explain how missile interceptors work and examine their strategic significance and limitations. (GS Paper II/III – International Relations / Science & Technology / Security)
Introduction:
Missile defence refers to systems designed to detect, track, and destroy incoming missiles before they hit their targets. In the recent conflict involving the U.S., Israel, and Iran, integrated air and missile defence systems played a central role in protecting cities, bases, and critical infrastructure.
Body
Working of Missile Interceptors
Missile defence operates in three stages:
- Detection and Tracking – Satellites and ground-based radars detect incoming missiles and calculate their speed and trajectory.
- Command and Control – Computer systems assess the threat and decide the appropriate response.
- Interception – An interceptor missile is launched to neutralise the target either by explosion (proximity fuse) or direct collision (hit-to-kill).
Systems such as Patriot missile system and THAAD provide layered defence within the atmosphere, while Arrow 3 intercepts missiles outside the atmosphere. Short-range threats and drones are countered by Iron Dome.
Strategic Significance
- Protection of Lives and Assets – Safeguards urban centres and military installations.
- Deterrence – Reduces the effectiveness of missile-based coercion.
- Decision-making Time – Provides leaders more time during crises.
- Technological Superiority – Enhances military credibility and alliances.
Limitations
- High Cost – Advanced interceptors are expensive, while adversaries may use cheaper missiles in saturation attacks.
- Limited Stockpiles – Sustained conflicts deplete reserves quickly.
- Evolving Threats – Hypersonic missiles and decoys reduce interception rates.
- Reload Vulnerability – Batteries remain exposed during reloading.
Conclusion:
Missile defence strengthens national security and deterrence but cannot provide absolute protection. Its effectiveness depends on layered architecture, industrial capacity, and complementary diplomatic efforts to reduce missile proliferation.
