204th Brigade Support Battalion (United States)
204th Air Brigade
204th Rifle Division (Soviet Union)
204th Vukovar Brigade
204th Street station
204th Battalion (Beavers), CEF
204th Engineer Battalion (United States)
204th Tactical Aviation Brigade
204th Tactical Fighter Squadron (JASDF)
204th Airlift Squadron
204th Coastal Division (Italy)
204th Independent Infantry Brigade (Home)
204th Division (People's Republic of China)
204th Infantry Division (German Empire)
204th New York State Legislature
3rd Guards Anti-Aircraft Artillery Division
1st Somersetshire Engineers
204th Air Group
South Midland (Warwickshire) Royal Garrison Artillery
68th (2nd Welsh) Division
Rockwell Field
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