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In ancient Macedonia, the 'Royal Squadron' of the Companion cavalry formed the mounted Agema, and was usually led in person by the king. The senior chiliarchy (χιλιαρχία) of the hypaspists and asthetairoi, and later argyraspids (silver shields) formed the foot Agema. In the eastern Diadochi States (the Seleucid Empire, Ptolemaic Egypt, the Kingdom of Bactria) they were the infantry guards of the King. The eastern Agema guards wore bronze plate, Phrygian helmet (or Thracian) helmet and aspis shield, and carried sarissa and short sword.