Related Clues:

• Squad
• The 'U' in I.C.U.
• Soldier's assignment
• Mile, e.g.
• Curriculum section
• Kind of trust
• Combat outfit
• Military subdivision
• One of a kind?
• Course division
• See 56-Across
• The 'U' of B.T.U.
• Cohesive entity
• Hospital division
• Single item