battle group

a military or naval task force, esp. aircraft carriers with their aircraft and support vessels

See battle group in American Heritage Dictionary 4

noun
  1. A U.S. army unit usually composed of five companies.
  2. A naval force composed of a variable number of warships, escorts, and supply vessels, depending on the nature of the mission.
  3. An improvised force, usually of battalion or brigade strength, drawn from different units for a particular operation.
  4. Chiefly British A tactical force of battalion strength formed by attaching infantry and armored companies.

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