| Answer | Crossword Clue |
|---|---|
| NORAD | Joint military venture between the U.S. and Canada |
| NORAD | Joint U.S.-Canada military org. |
| STMARYS | Border river, between U.S. and Canada. |
| ABUT | The U.S. and Canada do it |
| NORAD | Early warning system for the U.S. and Canada |
| APOLLOSOYUZ | First joint flight of the U.S. and Soviet space programs |
