Aous, or Aeas (now the Voyussa). A river in Epirus, Greece, which flows into the Adriatic Sea; on the banks of this river Philip of Macedon was twice defeated by the Romans.

Apaches. A warlike tribe of savage Indians who infest New Mexico and Arizona. Until within a few years they were hostile, making frequent raids into the neighboring Mexican states of Sonora and Chihuahua, and robbing and murdering the settlers. They are now peaceable, and settled on reservations (with the exception of a few renegades); but being entirely uncivilized, their peaceful condition is uncertain. See [Indians and their Agencies].

Aparejo. A kind of pack-saddle used in the American military service. See [Pack-saddles].

Apex. The tip, point, or summit of anything. The Romans so named the crest of a helmet, or the part whereon the horse-hair plume was attached.

Aphracti. In the ancient military art, open vessels, without decks or hatches, furnished only at head and stern with cross-planks, whereon the men stood to fight.

Apobates. A name given by the ancients to warriors who fought mounted on chariots; they were also called Anabates, or Paraebates; they were generally leaders who fought in this manner; their armor and arms consisted of helmet, breast-armor, lance, javelin, sword, and shield. These warriors occasionally alighted from the chariots to attack their adversaries on foot.

Apology. In a military sense, when made and accepted, debars the officer who accepts from bringing forward the matter as a substantive accusation. See Appendix, [Articles of War], [25].

Apomaque. This word, with the Grecians, signified those soldiers who were disqualified for military service from physical disability or other causes.

Appalachee Indians. A tribe of Indians once powerful in West Florida. In 1700 a part of them removed into what is now Alabama, and the tribe soon ceased to exist.

Apparatus. Ammunition and equipage for war.