The purpose of this legislation, known as the "Prohibit Deactivation of the ECABs Act of 2026," is to prevent the U.S. Army from deactivating its Expeditionary Combat Aviation Brigades (ECABs) for a specified period. The bill aims to ensure that these military units maintain their capabilities and resources, which are essential for various defense operations. Key provisions of the bill include a strict limitation on the use of funds for any actions that would reduce the capabilities, resources, aircraft, or personnel of the ECABs from the levels present at the time the law is enacted.