The iw to et et:Mall:BLR corresponds to [:Template:First-level administrative divisions of Belarus]] and should be removed.
The iw to nl nl:Sjabloon:BLR is not the most appropriate. This template should be linked to nl:Sjabloon:BY. Indeed this tempate displays the full name of the country beside the flag while the existing iw nl displays just the ISO code for the country beside the flag.
The iw to hu hu:Sablon:BLR is not the most appropriate. This template should be linked to hu:Sablon:Fehéroroszország. Indeed this tempate displays the full name of the country beside the flag while the existing iw hu displays just the ISO code for the country beside the flag.