Star Trek Starship Tactical Systems

Tactical Systems
Even though Starfleet is not a military organization, there come times when it has to fight back against aggressor, tyrants, and other threats to the security of the Federation and other peoples. When push comes to shove, or environmental dangers threaten, Starfleet vessels are equipped with powerful tactical systems to protect themselves and strike back at the enemy.

Beam Weapons
Missile Weapons
Deflector Shields

Source
Spacedock - Starship and Construction Manual (pages 65-75; 138-147)