The E-3 is a military aircraft used primarily by the United States Air Force. It is based on the Boeing 707 airliner and is designed for airborne early warning and control missions. The E-3 is equipped with a large radar dome on top, allowing it to detect and track aircraft over long distances, providing critical information to military commanders. This aircraft plays a vital role in air defense and surveillance operations. It can coordinate and direct friendly aircraft during missions, ensuring effective communication and strategy. The E-3 is often deployed in various military operations and exercises around the world, showcasing its importance in modern warfare.