The 134th Fighter Squadron (134th FS), nicknamed the Green Mountain Boys, is a unit of the Vermont Air National Guard 158th Fighter Wing located at Burlington Air National Guard Base, Burlington, Vermont. From 1986 to 2019, the 134th FS were equipped with the General Dynamics F-16C/D Fighting Falcon Block 30. The last F-16s departed Burlington on 6 April 2019 in preparation for the Lockheed Martin F-35A Lightning II which arrived on 19 September 2019. Since becoming an F-35A unit, the Green Mountain Boys are tasked with carrying out the Suppression of Enemy Air Defenses (SEAD).