| Country (Border-Country Name 1st Letter) | Bordering Country |
| Papua New Guinea (I)? | |
| Indonesia (M)? | |
| Malaysia (T)? | |
| Thailand (C)? | |
| Cambodia (V)? | |
| Vietnam (L)? | |
| Laos (M)? | |
| Myanmar (B)? | |
| Bangladesh (I)? | |
| India (P)? | |
| Pakistan (A)? | |
| Afghanistan (C)? | |
| China (N)? | |
| North Korea (R)? | |
| Russia (K)? | |
| Kazakhstan (K)? | |
| Kyrgyzstan (T)? | |
| Tajikistan (U)? | |
| Uzbekistan (T)? | |
| Turkmenistan (I)? | |
| Iran (A)? | |
| Azerbaijan (G)? | |
| Georgia (A)? | |
| Armenia (T)? | |
| Turkey (G)? | |
| Greece (A)? | |
| Albania (M)? | |
| Macedonia (B)? | |
| Bulgaria (R)? | |
| Romania (M)? | |
| Moldova (U)? | |
| Ukraine (B)? | |
| Belarus (L)? | |
| Latvia (L)? | |
| | Country (Border-Country Name 1st Letter) | Bordering Country |
| Lithuania (P)? | |
| Poland (C)? | |
| Czech Republic (S)? | |
| Slovakia (H)? | |
| Hungary (S)? | |
| Serbia (B)? | |
| Bosnia and Herzegovina (C)? | |
| Croatia (S)? | |
| Slovenia (I)? | |
| Italy (S)? | |
| Switzerland (L)? | |
| Liechtenstein (A)? | |
| Austria (G)? | |
| Germany (N)? | |
| Netherlands (B)? | |
| Belgium (L)? | |
| Luxembourg (F)? | |
| France (A)? | |
| Andorra (S)? | |
| Spain (M)? | |
| Morocco (A)? | |
| Algeria (M)? | |
| Mauritania (S)? | |
| Senegal (G)? | |
| Guinea-Bissau (G)? | |
| Guinea (S)? | |
| Sierra Leone (L)? | |
| Liberia (C)? | |
| Cote d'Ivoire (M)? | |
| Mali (B)? | |
| Burkina Faso (G)? | |
| Ghana (T)? | |
| Togo (B)? | |
| Benin (N)? | |
| | Country (Border-Country Name 1st Letter) | Bordering Country |
| Niger (N)? | |
| Nigeria (C)? | |
| Cameroon (C)? | |
| Central African Republic (D)? | |
| Democratic Republic of Congo (A)? | |
| Angola (N)? | |
| Namibia (S)? | |
| South Africa (B)? | |
| Botswana (Z)? | |
| Zimbabwe (M)? | |
| Mozambique (M)? | |
| Malawi (Z)? | |
| Zambia (T)? | |
| Tanzania (B)? | |
| Burundi (R)? | |
| Rwanda (U)? | |
| Uganda (K)? | |
| Kenya (S)? | |
| Somalia (E)? | |
| Ethiopia (D)? | |
| Djibouti (E)? | |
| Eritrea (S)? | |
| Sudan (C)? | |
| Chad (L)? | |
| Libya (E)? | |
| Egypt (I)? | |
| Israel (J)? | |
| Jordan (S)? | |
| Syria (I)? | |
| Iraq (K)? | |
| Kuwait (S)? | |
| Saudi Arabia (Y)? | |
| Yemen (O)? | |
| Oman (U)? | |
|