“Because of Cold War era laws preventing North Korea from obtaining maps of the country, the use of Google Maps is restricted in South Korea, the WSJ reports. “
Digging deeper, if you access google maps on .kr you are only allowed a limited amount of zoom in. This keeps any military installations blurry.
Stupid rule since how many North Koreans are going to use a south Korean provider.
Additionally, local map providers give high resolution but black out sensitive areas!