Armada Targets are powerful opponents that can only be attacked via Armadas - they are too tough to be defeated by standard attacks. They can be found in certain star systems in Federation, Klingon, Romulan and neutral space.
An Alliance can only have one active Armada attack against a given Armada Target at once, but it can have active Armada attacks against several different hostile targets at the same time.
Armada Hostiles belonging to the Federation, Klingon or Romulan factions count as members of that faction for Research, Officer and Ship abilities. Defeating them would grant Faction Point Rewards, but unlike normal hostiles, there is no Faction Point penalty.