Related Clues:

• Men in blue
• Confederacy foe
• The Teamsters, e.g.
• The 'U' in A.C.L.U.
• Word with ''jack'' or ''label''
• Union
• It may be striking
• See 8 Down
• Collective bargaining group
• 1865 victors
• Stars on the flag
• ___ Jack (British flag)
• Work organization
• USA, during the Civil War
• Bargaining group