railroad operating company

railroad car

assign the railroad to an army

railroad artillery

railroad bars

railroad launcher-train

railroad launching system

railroad mine

railroad mobility

railroad station traffic officer

railroad terminal

railroad transportation officer

railway maintenance and operating company

company tactical group / company tactical team

administrative company / administrative support company

battlefield operating system (BOS)

buffer and operating-rod group

common operating environment (COE)

contemporary operational environment / contemporary operating environment (COE)

deployment operating base

emergency fleet operating base

forward operating base (FOB)

ground operating equipment

missile operating area

naval base; naval operating base

naval operating base (fixed or temporary)

operating environment (OE)

operating forces

operating forces of the Navy

operating frequency

operating mechanism

operating principle

operating procedures