term has survived as an honorary title. Modern-day commodores are senior captains in the U.S. Navy holding major operational command of functional or "type" air wings or air groups (exclusive of carrier air wings) such as strike fighter wings, electronic attack wings, patrol and reconnaissance wings, airborne early warning wings, strategic communications wings, various helicopter wings, training air wings, or tactical air control groups; destroyer squadrons; submarine squadrons; amphibious squadrons; mine countermeasures squadrons; riverine squadrons; coastal warfare groups and squadrons; special warfare (SEAL) groups; explosive ordnance disposal (EOD) groups; logistics task forces; and naval construction regiments. With the exception of the naval construction regiments that are commanded by senior captains of the U.S. Navy's Civil Engineer Corps, all other commodores are senior captains who are warfare-qualified unrestricted line (URL) officers in that combat specialty (e.g., naval aviators and naval flight officers commanding "functional" or "type" air wings or air groups, surface warfare officers commanding destroyer or littoral combat ship squadrons, submarine warfare officers commanding submarine squadrons, SEAL officers commanding special warfare groups, etc.). Such officers employ the term "commander" in their organizational command title, this in keeping with the naval tradition of officers commanding a single ship, unit or installation being referred to as a "commanding officer" or "CO", while those captains and flag officers commanding multiple ships, multiple aviation squadrons, multiple air wings, task forces, fleets, etc., being known as a "commander" (but not to be confused with the USN / USCG rank of commander). With the exception of commanders of carrier air wings, captains in this latter category are referred to, both orally and in correspondence, as "commodore", but continue to wear the rank insignia of a captain. Captains in command of carrier air wings continue to use the traditional title of "CAG" which dates from when these units were known as carrier air groups. While technically not flag officers, captains holding a commodore billet are authorized a blue and white broad pennant, also known as a "command pennant", which is normally flown from their headquarters facilities ashore and/or from ships on which they are embarked when they are the senior officer present afloat (SOPA). Depending on the type of aircraft, it may also be displayed as a plate or decal when embarked on that aircraft, or painted on one of the aircraft in one of their subordinate squadrons that also displays their name on the fuselage. This