* Leading troops into battle. Officers were responsible for developing and executing battle plans, and for motivating and inspiring their soldiers to fight.
* Managing the logistics of war. Officers were responsible for ensuring that their troops had the food, ammunition, and other supplies they needed, as well as for arranging for the transportation of troops and supplies to the front lines.
* Maintaining discipline. Officers were responsible for enforcing military regulations and for punishing soldiers who violated those regulations.
* Providing medical care. Officers were responsible for ensuring that their troops had access to medical care, and for arranging for the evacuation of wounded soldiers from the battlefield.
* Communicating with higher headquarters. Officers were responsible for communicating with their superiors, as well as with other units, to coordinate military operations.
* Providing intelligence. Officers were responsible for gathering intelligence about the enemy, and for disseminating that intelligence to their troops.
* Inspiring and motivating troops. Officers were responsible for inspiring and motivating their troops, and for building morale among their units.
Officers in World War I played a critical role in the war effort. Their leadership, management skills, and dedication were essential to the Allied victory.