I need to to show the Republic of Cyprus, the TRNC, the Buffer Zone and the British Bases.
I've looked everywhere and every time it only shows the Republic, which makes sense as it is the UN recognised one but I need all of them.
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I downloaded the data from OpenStreetMap as described below. Find it here to downlaod: QGIS project with polygons for the areas you're interested in. See below for details.
How it can be done
Download the different borders separately from OpenStreetMap (always a great resource from where to get free geodata!) to get a separate layer for each unit: see the links below. You can use OverpassTurbo for that: see here for a detailed description of how to do that. Than you have to clip one layer from the other as described here - probably including the coastline to represent only the inland + islands (for mainland Cyprus without island, see the last linked OSM-relation).
Find here the map data for the different borders you're looking for:
Republic of Cyprus: https://www.openstreetmap.org/relation/307787
British Sovereign Base Areas: https://www.openstreetmap.org/relation/3263728
North Cyprus (TRNC): https://www.openstreetmap.org/relation/2514541
Buffer zone: https://www.openstreetmap.org/relation/3263909
Mainland Cyprus (without islands, sea): https://www.openstreetmap.org/relation/3263732
To get only the inland area of the two political entities (Republic of Cyprus and TRNC), use the query
admin_level=5 in overpass turbo as you can see on this screenshot:
Than export / save the result and load the result to QGIS. Save it as GeoPackage file. Select the features representing the republic, toggle editing and
Merge Selected Features, see next screenshot: