Final answer:
The basic war fighting organization and building block of the Air Expeditionary Task Force (AETF) is the Air Expeditionary Squadron (AES), which offers adaptability and core capabilities for various missions.
Step-by-step explanation:
Basic War Fighting Organization in the AETF
The component of the Air Expeditionary Task Force (AETF) that is considered the basic war fighting organization and the building block of the AETF structure is the Air Expeditionary Squadron (AES). Much like how the American Expeditionary Force (AEF) was crucial in providing fresh troops and support during World War I, the AES serves as a fundamental unit in modern expeditionary warfare. The AES integrates different capabilities and operates as a modular unit that can be tailored to specific missions, making it adaptable and efficient for various operations. It provides the AETF with its core capabilities and is essential for its execution of missions.