This debug command prints information to the console regarding the neighbour status of the country with the specified tag and the country that you are playing as.
test_neighbour [country tag]
| Country Tag | The country tag of the country that you wish to find out the neighbor status of (whether or not the country you are playing as is a neighbor). |
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test_neighbour ISR
This console command would tell you whether or not your country is a neighbour with Israel (country tag ISR).