Electronic warfare is when people use electronics to try and win a fight. Instead of using guns and bombs, they use radios and computer systems to confuse the enemy and win the battle. For example, they might use radio waves to jam the enemy's communication systems so they can't communicate with each other, or they might use computers to hack into the enemy's computers to find out their plans. Electronic warfare is important because it lets people use tech to try and win without putting anyone in danger.