Defense exercises are planned activities conducted by military forces to practice and improve their readiness for potential threats. These exercises can involve various scenarios, including combat simulations, humanitarian assistance, and disaster response. They help troops develop skills, test equipment, and enhance coordination among different branches of the military. These exercises often include participation from allied nations, fostering cooperation and understanding between forces. For example, NATO conducts joint exercises to strengthen the capabilities of its member countries. Overall, defense exercises are essential for maintaining national security and ensuring that military personnel are prepared for real-world challenges.