"Rules of Engagement" (ROE) are guidelines that dictate how military forces can interact with enemy forces and civilians during conflicts. These rules help ensure that actions taken in combat are lawful and ethical, balancing military objectives with the need to protect non-combatants and minimize collateral damage. ROE can vary based on the mission, location, and specific circumstances, and they are often influenced by international law, such as the Geneva Conventions. Commanders are responsible for ensuring that their troops understand and adhere to these rules, which can evolve as situations change on the ground.