"fire on my command". "Feuer Frei" – "fire at will". Feuerschutz – suppressive fire, covering fire. Feuerschutzpolizei - Fire Protection Police. Feuerwerker – ordnance NCO FlaK – Fliegerabwehrkanone, Flug(zeug)abwehrkanone – air defense gun; anti-aircraft artillery (AAA) (e.g., the "eighty-eight"). FlaK-Helfer – "FlaK helper"; often underaged auxiliaries used to load and operate FlaK batteries and man searchlight batteries. Flakpanzer – armoured self-propelled antiaircraft gun, such as the Möbelwagen. Flakvierling – anti-aircraft, open turret-style weapon system employing a quartet (vierling) of 20mm autocannon, employed on land, in self-propelled mounts and on ships. Flammpanzer – flame-throwing tank. Flammenwerfer – flame-thrower. Flecktarn – spotted camouflage. Fliegerabwehr-Abteilung – anti-aircraft battalion. Fliegerabwehrkanone – see FlaK. Fliegerbombe (FliBo) – aerial bomb Fliegerdivision – lit. Flight division. Fliegerkorps – lit. Flight corps Fliegerschwert – airman's sword (part of an officer's regalia). Fliegertruppe – part of the official name (Die Fliegertruppen des Deutschen Kaiserreiches) of the Imperial German Army Air Service, existing under that name from 1910 to October 1916, when it was reorganized as the Luftstreitkräfte. Flotte – naval fleet Flottille (Fl.) – flotilla. Flucht nach vorn – "flight to the front"; trying to assault rather than wait or retreat while under threat. Flüchtlingslager – refugee camp. Flügelmann – wingman Flugbombe V-1 (V-1 flying bomb) – pulse-jet engine powered flying bomb carrying high-explosive warhead known to the Allies as the "buzz bomb". Flugzeug – aircraft. Flug(zeug)abwehrkanone – see FlaK. Flugzeugträger – aircraft carrier. Fluten – U-boat order; "Flood the tanks!" Formaldienst – drill and ceremony. Forschungsamt – intelligence service of the Luftwaffe. Forstschutz – Forest Police (see Ordnungspolizei) Frachter – freighter. Franktireure – terrorists; (see Freischärler). Franktireurkrieg – terrorist warfare. Fregattenkapitän – naval rank, literally meaning "frigate captain", in between Korvettenkapitän and Kapitän zur See. Commanded a light cruiser, or served as the executive officer on a capital ship, hence often translated as commander Freikorps – volunteer corps (see Freiwillige). The Freikorps was an early volunteer paramilitary organizations formed in the wake of the German defeat in the First World War making up the German army in lieu of the restrictions mandated by the Treaty of Versailles; they consisted primarily of demobilized soldiers, disillusioned young men, and fanatical conservative nationalists who blamed Social Democrats, Jews, and communists for Germany's problems. Freischärler – irregular or guerrilla (see Widerstandskräfte). Freischärlerunwesen – "pestering by guerrillas"; guerrilla activities or terrorist incidents. Freiwillige – volunteer. Fremde Heere Ost/West (FHO/FHW) – Foreign Armies East/West,