| Answer | Crossword Clue |
|---|---|
| OPEC | Oil gp. headquartered in Vienna |
| OPEC | Gp. headquartered in Vienna, Austria |
| OPEC | Org. headquartered in Vienna |
| OPEC | Cartel headquartered in Vienna |
| OPEC | Intl. group headquartered in Vienna |
| NATO | Gp. headquartered in Brussels |
| PLO | Gp. headquartered in Ramallah |
| IOC | Gp. headquartered in Lausanne, Switz. |
| SEATO | Gp. once headquartered in Bangkok |
| PLO | Political gp. headquartered in Ramallah |
| UNESCO | Gp. of 180 nations headquartered in Paris |
