its squadrons, as does the Chilean Air Force (grupo de aviación). The Portuguese Air Force (esquadra) and the Polish Air Force (eskadra taktyczna, Polish for tactical squadron) use the term squadron with its etimology originating from the naval and not the army meaning. The Czech Air Force and the Slovak Air Force use the generic term Letka as the squadron equivalent. The Turkish Air Force (filo) and the Hellenic Air Force (μοιρα αεροπορικής (mira aeroporikis) - aviation squadron) use the squadron denomination originating from the army term. The Royal Norwegian Air Force use the skvadron term also originating from the army term. So does the Hungarian Air Force with repülőszázad (Hungarian for aircraft squadron or flying squadron; the cavalry company-equivalent term is század). Many Eastern European countries use the term originating from the French word escadrille: Russian Air Force - Эскадрилья (eskadril'ya), Ukrainian Air Force - Ескадрилья (eskadril'ya), Belarusian Air Force - Эскадрыльля (eskadryil'ya), Romanian Air Force - escadrila, Bulgarian Air Force - Ескадрила (eskadrila), Serbian Air Force - Ескадрила (eskadrila), Croatian Air Force - eskadrila. The Royal Danish Air Force uses eskadrille, also originating from the French escadrille. References Aerial warfare Air force units and formations