A civil defense system ensures protection of civilians during emergencies or disasters.

Civil defense can also refer to the organized efforts to prepare for military attacks on civilians.

नागरिकों पर सैन्य हमलों की तैयारी के लिए संगठित प्रयास

English Usage: During the Cold War, many countries focused on civil defense to prepare for potential bomb attacks.

Hindi Usage: शीत युद्ध के दौरान, कई देशों ने संभावित बम हमलों के लिए नागरिक रक्षा पर ध्यान केंद्रित किया।