| Letter | NATO Code | Western Front slang | US Army Code |
| A | Alpha | Ack | Able |
| B | Bravo | Beer | Baker |
| C | Charlie | Charlie | Charlie |
| D | Delta | Don | Dog |
| E | Echo | Edward | Easy |
| F | Foxtrot | Freddie | Fox |
| G | Golf | Gee | George |
| H | Hotel | Harry | How |
| I | India | Ink | Item |
| J | Juliett | Johnnie | Jig |
| K | Kilo | King | King |
| L | Lima | London | Love |
| M | Mike | Emma | Mike |
| N | November | Nuts | Nan |
| O | Oscar | Oranges | Oboe |
| P | Papa | Pip | Peter |
| Q | Quebec | Queen | Queen |
| R | Romeo | Robert | Roger |
| S | Sierra | Esses | Sugar |
| T | Tango | Toc | Tare |
| U | Uniform | Uncle | Uncle |
| V | Victor | Vic | Victor |
| W | Whiskey | William | William |
| X | X-ray | X-ray | X-ray |
| Y | Yankee | Yorker | Yoke |
| Z | Zulu | Zebra | Zebra |