Radar countermeasures are techniques used to disrupt, deceive, or evade radar detection by an adversary. Common countermeasures include radar jamming, where powerful signals are emitted to overwhelm or confuse enemy radar, and radar spoofing, where false signals are generated to mislead the radar system. Stealth technology also plays a role in radar countermeasures by reducing the radar cross-section (RCS) of objects, making them harder to detect. These countermeasures are vital in military operations, where radar detection can reveal the position of assets or compromise missions.