| Hint | Country 1 | Country 2 |
| feature a vertical tricolour of blue yellow and red for its flag. | |
| borders on Lake Titicaca | |
| has over 1 billion people | |
| south-east asian archipelago with over 7000 islands | |
| separated by the Yalu (Amnok) river. | |
| ends in -guay | |
| share the 141st meridian west as part of its border | |
| has a direction in its name other than south | |
| African country with a capital beggining with Y | |
| starts with a z | |
| united until January 1st, 1993. | |
| are in Patagonia | |
| has 14 nations bordering it. | |