Ranking the total shared border coverage by country, from largest to smallest.
Shared Border Coverage is the complete distance of borders shared with neighbors for a given nation in the GFP formula. Border coverage is considered an important factor as it can influence alliances and reflects incoming / outgoing traffic and commerce capabilities. In times of war, borders become increasingly crucial in homeland defense. As such, longer-spanning borders are a natural hinderance for a given defending power (and therefore a penalty in the GFP formula).
Island-nations, such as Australia, are not penalized for lacking shared borders but are penalized for lengthy coastlines.
Values below displayed in Kilometers (km). Data presented on this list is through 2023.
NOTE: Beginning in 2023, the total number of neighbors bordering a country is now applied as a penalty.
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