One aspect of training that received particular attention at Camp Adair was aircraft recognition. Soldiers learned to identify American aircraft of all types, from small observation and spotter planes to fighters and heavy bombers. This training was essential not only to prevent friendly fire against Allied aircraft, but also to help ground troops communicate effectively with pilots and aircrews. By recognizing friendly aircraft quickly and accurately, soldiers reduced the risk of being mistaken for enemy forces and becoming targets themselves during combat operations.