The Hellenic Air Force (HAF) (Greek: Πολεμική Αεροπορία, Polemikí Aeroporía, literally "Military Aviation") is the air force of Greece. The mission of the Hellenic Air Force is to guard and protect Greek airspace, provide air assistance and support to the Hellenic Army and the Hellenic Navy, as well as the provision of humanitarian aid in Greece and around the world. The Hellenic Air Force includes approximately 33,000 active troops, of whom 11,750 are career officers, 14,000 are professional conscripts (ΕΠ.ΟΠ.), 7,250 are volunteer conscripts and 1,100 are women. During the period of monarchy between 1935–1973 the force was known as the Royal Hellenic Air Force (RHAF) (Greek: Ἑλληνικὴ Βασιλικὴ Ἀεροπορία, Ellinikí Vasilikí Aeroporía). The motto of the Hellenic Air Force is the ancient Greek phrase "Αἰὲν Ὑψικρατεῖν" (Aièn Hypsikrateîn, "Always Dominate the Heights"), and the HAF ensign represents a flying eagle in front of the Hellenic Air Force roundel. The Hellenic Air Force is one of the three branches of the Hellenic Armed Forces.