| R |
 |
| RAAF |
Royal
Australian Air Force |
| RAF |
Royal
Air Force (Britain) |
| Rainbow |
Code
name given to US war plans drawn up for various
scenarios |
| RAN |
Royal
Australian Navy |
| RCAF |
Royal
Canadian Air Force |
| RCN |
Royal
Canadian Navy |
| RDF |
Radio
Direction Finding |
| Reckless |
Operational
code name for US operations in Hollandia, New
Guinea - April 1944 |
| Red
Army |
The
Soviet armed forces |
| Reichstag |
The
German Parliament |
| RFSS |
Reichsfuehrer
SS - "Reich Leader SS" the formal title of Heinrich
Himmler |
| RIN |
Royal
Indian Navy |
| Ring |
Operational
code name for Soviet offensive against German
army at Stalingrad - January 1943 |
| RN |
Royal
Navy (Britain) |
| RNZAF |
Royal
New Zealand Air Force |
| RNZN |
Royal
New Zealand Navy |
| RSHA |
Reichssicherheitshauptamt
- "Reich Security Main Office" - orgainisation
created by Himmler to coordinate all German security
and police departments including the Gestapo,
Kripo and SD. |
| Rumyantsev |
Operational
code name for Soviet counter offensive at the
battle of Kursk, following operation Citadel
- August 1943 |