So I just learned that not all borders are fenced, very few of them are actually. So how are countries able to monitor thousands of kilometers of unfenced borders to fight off smuggling and illegal immigration ? Especially when it comes to long borders in arid/undeveloped areas, one example that comes to mind are the borders in Siberia.
In: Other
For the Finnish-Russian border even the seemingly unguarded bits are still under remote surveillance and some border police will appear if you are hiking in the forest towards the border.
Latest Answers